85068880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:704

約数の個数: 80

約数和(自身を含む): 214767504

約数和(自身を除く): 129698624

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 157, 208, 260, 314, 520, 521, 628, 785, 1040, 1042, 1256, 1570, 2041, 2084, 2512, 2605, 3140, 4082, 4168, 5210, 6280, 6773, 8164, 8336, 10205, 10420, 12560, 13546, 16328, 20410, 20840, 27092, 32656, 33865, 40820, 41680, 54184, 67730, 81640, 81797, 108368, 135460, 163280, 163594, 270920, 327188, 408985, 541840, 654376, 817970, 1063361, 1308752, 1635940, 2126722, 3271880, 4253444, 5316805, 6543760, 8506888, 10633610, 17013776, 21267220, 42534440, 85068880]

約数ペア:

[(1, 85068880), (2, 42534440), (4, 21267220), (5, 17013776), (8, 10633610), (10, 8506888), (13, 6543760), (16, 5316805), (20, 4253444), (26, 3271880), (40, 2126722), (52, 1635940), (65, 1308752), (80, 1063361), (104, 817970), (130, 654376), (157, 541840), (208, 408985), (260, 327188), (314, 270920), (520, 163594), (521, 163280), (628, 135460), (785, 108368), (1040, 81797), (1042, 81640), (1256, 67730), (1570, 54184), (2041, 41680), (2084, 40820), (2512, 33865), (2605, 32656), (3140, 27092), (4082, 20840), (4168, 20410), (5210, 16328), (6280, 13546), (6773, 12560), (8164, 10420), (8336, 10205)]