68794840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 173352960

約数和(自身を除く): 104558120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 43, 46, 47, 74, 86, 92, 94, 115, 148, 172, 184, 185, 188, 215, 230, 235, 296, 344, 370, 376, 430, 460, 470, 740, 851, 860, 920, 940, 989, 1081, 1480, 1591, 1702, 1720, 1739, 1880, 1978, 2021, 2162, 3182, 3404, 3478, 3956, 4042, 4255, 4324, 4945, 5405, 6364, 6808, 6956, 7912, 7955, 8084, 8510, 8648, 8695, 9890, 10105, 10810, 12728, 13912, 15910, 16168, 17020, 17390, 19780, 20210, 21620, 31820, 34040, 34780, 36593, 39560, 39997, 40420, 43240, 46483, 63640, 69560, 73186, 74777, 79994, 80840, 92966, 146372, 149554, 159988, 182965, 185932, 199985, 232415, 292744, 299108, 319976, 365930, 371864, 373885, 399970, 464830, 598216, 731860, 747770, 799940, 929660, 1463720, 1495540, 1599880, 1719871, 1859320, 2991080, 3439742, 6879484, 8599355, 13758968, 17198710, 34397420, 68794840]

約数ペア:

[(1, 68794840), (2, 34397420), (4, 17198710), (5, 13758968), (8, 8599355), (10, 6879484), (20, 3439742), (23, 2991080), (37, 1859320), (40, 1719871), (43, 1599880), (46, 1495540), (47, 1463720), (74, 929660), (86, 799940), (92, 747770), (94, 731860), (115, 598216), (148, 464830), (172, 399970), (184, 373885), (185, 371864), (188, 365930), (215, 319976), (230, 299108), (235, 292744), (296, 232415), (344, 199985), (370, 185932), (376, 182965), (430, 159988), (460, 149554), (470, 146372), (740, 92966), (851, 80840), (860, 79994), (920, 74777), (940, 73186), (989, 69560), (1081, 63640), (1480, 46483), (1591, 43240), (1702, 40420), (1720, 39997), (1739, 39560), (1880, 36593), (1978, 34780), (2021, 34040), (2162, 31820), (3182, 21620), (3404, 20210), (3478, 19780), (3956, 17390), (4042, 17020), (4255, 16168), (4324, 15910), (4945, 13912), (5405, 12728), (6364, 10810), (6808, 10105), (6956, 9890), (7912, 8695), (7955, 8648), (8084, 8510)]