639718560

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3797}}^1$

素因数の和:3837

約数の個数: 240

約数和(自身を含む): 2431980936

約数和(自身を除く): 1792262376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 324, 351, 360, 390, 405, 416, 432, 468, 480, 520, 540, 585, 624, 648, 702, 720, 780, 810, 864, 936, 1040, 1053, 1080, 1170, 1248, 1296, 1404, 1440, 1560, 1620, 1755, 1872, 2080, 2106, 2160, 2340, 2592, 2808, 3120, 3240, 3510, 3744, 3797, 4212, 4320, 4680, 5265, 5616, 6240, 6480, 7020, 7594, 8424, 9360, 10530, 11232, 11391, 12960, 14040, 15188, 16848, 18720, 18985, 21060, 22782, 28080, 30376, 33696, 34173, 37970, 42120, 45564, 49361, 56160, 56955, 60752, 68346, 75940, 84240, 91128, 98722, 102519, 113910, 121504, 136692, 148083, 151880, 168480, 170865, 182256, 197444, 205038, 227820, 246805, 273384, 296166, 303760, 307557, 341730, 364512, 394888, 410076, 444249, 455640, 493610, 512595, 546768, 592332, 607520, 615114, 683460, 740415, 789776, 820152, 888498, 911280, 987220, 1025190, 1093536, 1184664, 1230228, 1332747, 1366920, 1480830, 1537785, 1579552, 1640304, 1776996, 1822560, 1974440, 2050380, 2221245, 2369328, 2460456, 2665494, 2733840, 2961660, 3075570, 3280608, 3553992, 3948880, 3998241, 4100760, 4442490, 4738656, 4920912, 5330988, 5467680, 5923320, 6151140, 6663735, 7107984, 7897760, 7996482, 8201520, 8884980, 9841824, 10661976, 11846640, 12302280, 13327470, 14215968, 15992964, 16403040, 17769960, 19991205, 21323952, 23693280, 24604560, 26654940, 31985928, 35539920, 39982410, 42647904, 49209120, 53309880, 63971856, 71079840, 79964820, 106619760, 127943712, 159929640, 213239520, 319859280, 639718560]

約数ペア:

[(1, 639718560), (2, 319859280), (3, 213239520), (4, 159929640), (5, 127943712), (6, 106619760), (8, 79964820), (9, 71079840), (10, 63971856), (12, 53309880), (13, 49209120), (15, 42647904), (16, 39982410), (18, 35539920), (20, 31985928), (24, 26654940), (26, 24604560), (27, 23693280), (30, 21323952), (32, 19991205), (36, 17769960), (39, 16403040), (40, 15992964), (45, 14215968), (48, 13327470), (52, 12302280), (54, 11846640), (60, 10661976), (65, 9841824), (72, 8884980), (78, 8201520), (80, 7996482), (81, 7897760), (90, 7107984), (96, 6663735), (104, 6151140), (108, 5923320), (117, 5467680), (120, 5330988), (130, 4920912), (135, 4738656), (144, 4442490), (156, 4100760), (160, 3998241), (162, 3948880), (180, 3553992), (195, 3280608), (208, 3075570), (216, 2961660), (234, 2733840), (240, 2665494), (260, 2460456), (270, 2369328), (288, 2221245), (312, 2050380), (324, 1974440), (351, 1822560), (360, 1776996), (390, 1640304), (405, 1579552), (416, 1537785), (432, 1480830), (468, 1366920), (480, 1332747), (520, 1230228), (540, 1184664), (585, 1093536), (624, 1025190), (648, 987220), (702, 911280), (720, 888498), (780, 820152), (810, 789776), (864, 740415), (936, 683460), (1040, 615114), (1053, 607520), (1080, 592332), (1170, 546768), (1248, 512595), (1296, 493610), (1404, 455640), (1440, 444249), (1560, 410076), (1620, 394888), (1755, 364512), (1872, 341730), (2080, 307557), (2106, 303760), (2160, 296166), (2340, 273384), (2592, 246805), (2808, 227820), (3120, 205038), (3240, 197444), (3510, 182256), (3744, 170865), (3797, 168480), (4212, 151880), (4320, 148083), (4680, 136692), (5265, 121504), (5616, 113910), (6240, 102519), (6480, 98722), (7020, 91128), (7594, 84240), (8424, 75940), (9360, 68346), (10530, 60752), (11232, 56955), (11391, 56160), (12960, 49361), (14040, 45564), (15188, 42120), (16848, 37970), (18720, 34173), (18985, 33696), (21060, 30376), (22782, 28080)]