64821640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:303

約数の個数: 96

約数和(自身を含む): 162328320

約数和(自身を除く): 97506680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 169, 172, 215, 223, 260, 338, 344, 430, 446, 520, 559, 676, 845, 860, 892, 1115, 1118, 1352, 1690, 1720, 1784, 2230, 2236, 2795, 2899, 3380, 4460, 4472, 5590, 5798, 6760, 7267, 8920, 9589, 11180, 11596, 14495, 14534, 19178, 22360, 23192, 28990, 29068, 36335, 37687, 38356, 47945, 57980, 58136, 72670, 75374, 76712, 95890, 115960, 124657, 145340, 150748, 188435, 191780, 249314, 290680, 301496, 376870, 383560, 498628, 623285, 753740, 997256, 1246570, 1507480, 1620541, 2493140, 3241082, 4986280, 6482164, 8102705, 12964328, 16205410, 32410820, 64821640]

約数ペア:

[(1, 64821640), (2, 32410820), (4, 16205410), (5, 12964328), (8, 8102705), (10, 6482164), (13, 4986280), (20, 3241082), (26, 2493140), (40, 1620541), (43, 1507480), (52, 1246570), (65, 997256), (86, 753740), (104, 623285), (130, 498628), (169, 383560), (172, 376870), (215, 301496), (223, 290680), (260, 249314), (338, 191780), (344, 188435), (430, 150748), (446, 145340), (520, 124657), (559, 115960), (676, 95890), (845, 76712), (860, 75374), (892, 72670), (1115, 58136), (1118, 57980), (1352, 47945), (1690, 38356), (1720, 37687), (1784, 36335), (2230, 29068), (2236, 28990), (2795, 23192), (2899, 22360), (3380, 19178), (4460, 14534), (4472, 14495), (5590, 11596), (5798, 11180), (6760, 9589), (7267, 8920)]