991393020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1039}}^1$

素因数の和:1110

約数の個数: 240

約数和(自身を含む): 3382579200

約数和(自身を除く): 2391186180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 31, 36, 38, 45, 54, 57, 60, 62, 76, 81, 90, 93, 95, 108, 114, 124, 135, 155, 162, 171, 180, 186, 190, 228, 270, 279, 285, 310, 324, 342, 372, 380, 405, 465, 513, 540, 558, 570, 589, 620, 684, 810, 837, 855, 930, 1026, 1039, 1116, 1140, 1178, 1395, 1539, 1620, 1674, 1710, 1767, 1860, 2052, 2078, 2356, 2511, 2565, 2790, 2945, 3078, 3117, 3348, 3420, 3534, 4156, 4185, 5022, 5130, 5195, 5301, 5580, 5890, 6156, 6234, 7068, 7695, 8370, 8835, 9351, 10044, 10260, 10390, 10602, 11780, 12468, 12555, 15390, 15585, 15903, 16740, 17670, 18702, 19741, 20780, 21204, 25110, 26505, 28053, 30780, 31170, 31806, 32209, 35340, 37404, 39482, 46755, 47709, 50220, 53010, 56106, 59223, 62340, 63612, 64418, 78964, 79515, 84159, 93510, 95418, 96627, 98705, 106020, 112212, 118446, 128836, 140265, 159030, 161045, 168318, 177669, 187020, 190836, 193254, 197410, 236892, 238545, 280530, 289881, 296115, 318060, 322090, 336636, 355338, 386508, 394820, 420795, 477090, 483135, 533007, 561060, 579762, 592230, 611971, 644180, 710676, 841590, 869643, 888345, 954180, 966270, 1066014, 1159524, 1184460, 1223942, 1449405, 1599021, 1683180, 1739286, 1776690, 1835913, 1932540, 2132028, 2447884, 2608929, 2665035, 2898810, 3059855, 3198042, 3478572, 3553380, 3671826, 4348215, 5217858, 5330070, 5507739, 5797620, 6119710, 6396084, 7343652, 7995105, 8696430, 9179565, 10435716, 10660140, 11015478, 12239420, 13044645, 15990210, 16523217, 17392860, 18359130, 22030956, 26089290, 27538695, 31980420, 33046434, 36718260, 49569651, 52178580, 55077390, 66092868, 82616085, 99139302, 110154780, 165232170, 198278604, 247848255, 330464340, 495696510, 991393020]

約数ペア:

[(1, 991393020), (2, 495696510), (3, 330464340), (4, 247848255), (5, 198278604), (6, 165232170), (9, 110154780), (10, 99139302), (12, 82616085), (15, 66092868), (18, 55077390), (19, 52178580), (20, 49569651), (27, 36718260), (30, 33046434), (31, 31980420), (36, 27538695), (38, 26089290), (45, 22030956), (54, 18359130), (57, 17392860), (60, 16523217), (62, 15990210), (76, 13044645), (81, 12239420), (90, 11015478), (93, 10660140), (95, 10435716), (108, 9179565), (114, 8696430), (124, 7995105), (135, 7343652), (155, 6396084), (162, 6119710), (171, 5797620), (180, 5507739), (186, 5330070), (190, 5217858), (228, 4348215), (270, 3671826), (279, 3553380), (285, 3478572), (310, 3198042), (324, 3059855), (342, 2898810), (372, 2665035), (380, 2608929), (405, 2447884), (465, 2132028), (513, 1932540), (540, 1835913), (558, 1776690), (570, 1739286), (589, 1683180), (620, 1599021), (684, 1449405), (810, 1223942), (837, 1184460), (855, 1159524), (930, 1066014), (1026, 966270), (1039, 954180), (1116, 888345), (1140, 869643), (1178, 841590), (1395, 710676), (1539, 644180), (1620, 611971), (1674, 592230), (1710, 579762), (1767, 561060), (1860, 533007), (2052, 483135), (2078, 477090), (2356, 420795), (2511, 394820), (2565, 386508), (2790, 355338), (2945, 336636), (3078, 322090), (3117, 318060), (3348, 296115), (3420, 289881), (3534, 280530), (4156, 238545), (4185, 236892), (5022, 197410), (5130, 193254), (5195, 190836), (5301, 187020), (5580, 177669), (5890, 168318), (6156, 161045), (6234, 159030), (7068, 140265), (7695, 128836), (8370, 118446), (8835, 112212), (9351, 106020), (10044, 98705), (10260, 96627), (10390, 95418), (10602, 93510), (11780, 84159), (12468, 79515), (12555, 78964), (15390, 64418), (15585, 63612), (15903, 62340), (16740, 59223), (17670, 56106), (18702, 53010), (19741, 50220), (20780, 47709), (21204, 46755), (25110, 39482), (26505, 37404), (28053, 35340), (30780, 32209), (31170, 31806)]