648289980

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:399

約数の個数: 288

約数和(自身を含む): 2273875968

約数和(自身を除く): 1625585988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 31, 36, 39, 45, 52, 54, 60, 62, 65, 78, 81, 90, 93, 108, 117, 124, 130, 135, 155, 156, 162, 180, 186, 195, 234, 243, 260, 270, 279, 310, 324, 331, 351, 372, 390, 403, 405, 465, 468, 486, 540, 558, 585, 620, 662, 702, 780, 806, 810, 837, 930, 972, 993, 1053, 1116, 1170, 1209, 1215, 1324, 1395, 1404, 1612, 1620, 1655, 1674, 1755, 1860, 1986, 2015, 2106, 2340, 2418, 2430, 2511, 2790, 2979, 3159, 3310, 3348, 3510, 3627, 3972, 4030, 4185, 4212, 4303, 4836, 4860, 4965, 5022, 5265, 5580, 5958, 6045, 6318, 6620, 7020, 7254, 7533, 8060, 8370, 8606, 8937, 9930, 10044, 10261, 10530, 10881, 11916, 12090, 12555, 12636, 12909, 14508, 14895, 15066, 15795, 16740, 17212, 17874, 18135, 19860, 20522, 21060, 21515, 21762, 24180, 25110, 25818, 26811, 29790, 30132, 30783, 31590, 32643, 35748, 36270, 37665, 38727, 41044, 43030, 43524, 44685, 50220, 51305, 51636, 53622, 54405, 59580, 61566, 63180, 64545, 65286, 72540, 75330, 77454, 80433, 86060, 89370, 92349, 97929, 102610, 107244, 108810, 116181, 123132, 129090, 130572, 133393, 134055, 150660, 153915, 154908, 160866, 163215, 178740, 184698, 193635, 195858, 205220, 217620, 232362, 258180, 266786, 268110, 277047, 307830, 321732, 326430, 348543, 369396, 387270, 391716, 400179, 402165, 461745, 464724, 489645, 533572, 536220, 554094, 580905, 615660, 652860, 666965, 697086, 774540, 800358, 804330, 831141, 923490, 979290, 1045629, 1108188, 1161810, 1200537, 1333930, 1385235, 1394172, 1600716, 1608660, 1662282, 1742715, 1846980, 1958580, 2000895, 2091258, 2323620, 2401074, 2493423, 2667860, 2770470, 3324564, 3485430, 3601611, 4001790, 4155705, 4182516, 4802148, 4986846, 5228145, 5540940, 6002685, 6970860, 7203222, 8003580, 8311410, 9973692, 10456290, 10804833, 12005370, 12467115, 14406444, 16622820, 18008055, 20912580, 21609666, 24010740, 24934230, 32414499, 36016110, 43219332, 49868460, 54024165, 64828998, 72032220, 108048330, 129657996, 162072495, 216096660, 324144990, 648289980]

約数ペア:

[(1, 648289980), (2, 324144990), (3, 216096660), (4, 162072495), (5, 129657996), (6, 108048330), (9, 72032220), (10, 64828998), (12, 54024165), (13, 49868460), (15, 43219332), (18, 36016110), (20, 32414499), (26, 24934230), (27, 24010740), (30, 21609666), (31, 20912580), (36, 18008055), (39, 16622820), (45, 14406444), (52, 12467115), (54, 12005370), (60, 10804833), (62, 10456290), (65, 9973692), (78, 8311410), (81, 8003580), (90, 7203222), (93, 6970860), (108, 6002685), (117, 5540940), (124, 5228145), (130, 4986846), (135, 4802148), (155, 4182516), (156, 4155705), (162, 4001790), (180, 3601611), (186, 3485430), (195, 3324564), (234, 2770470), (243, 2667860), (260, 2493423), (270, 2401074), (279, 2323620), (310, 2091258), (324, 2000895), (331, 1958580), (351, 1846980), (372, 1742715), (390, 1662282), (403, 1608660), (405, 1600716), (465, 1394172), (468, 1385235), (486, 1333930), (540, 1200537), (558, 1161810), (585, 1108188), (620, 1045629), (662, 979290), (702, 923490), (780, 831141), (806, 804330), (810, 800358), (837, 774540), (930, 697086), (972, 666965), (993, 652860), (1053, 615660), (1116, 580905), (1170, 554094), (1209, 536220), (1215, 533572), (1324, 489645), (1395, 464724), (1404, 461745), (1612, 402165), (1620, 400179), (1655, 391716), (1674, 387270), (1755, 369396), (1860, 348543), (1986, 326430), (2015, 321732), (2106, 307830), (2340, 277047), (2418, 268110), (2430, 266786), (2511, 258180), (2790, 232362), (2979, 217620), (3159, 205220), (3310, 195858), (3348, 193635), (3510, 184698), (3627, 178740), (3972, 163215), (4030, 160866), (4185, 154908), (4212, 153915), (4303, 150660), (4836, 134055), (4860, 133393), (4965, 130572), (5022, 129090), (5265, 123132), (5580, 116181), (5958, 108810), (6045, 107244), (6318, 102610), (6620, 97929), (7020, 92349), (7254, 89370), (7533, 86060), (8060, 80433), (8370, 77454), (8606, 75330), (8937, 72540), (9930, 65286), (10044, 64545), (10261, 63180), (10530, 61566), (10881, 59580), (11916, 54405), (12090, 53622), (12555, 51636), (12636, 51305), (12909, 50220), (14508, 44685), (14895, 43524), (15066, 43030), (15795, 41044), (16740, 38727), (17212, 37665), (17874, 36270), (18135, 35748), (19860, 32643), (20522, 31590), (21060, 30783), (21515, 30132), (21762, 29790), (24180, 26811), (25110, 25818)]