39680680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 97025040

約数和(自身を除く): 57344360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 137, 260, 274, 520, 548, 557, 685, 1096, 1114, 1370, 1781, 2228, 2740, 2785, 3562, 4456, 5480, 5570, 7124, 7241, 8905, 11140, 14248, 14482, 17810, 22280, 28964, 35620, 36205, 57928, 71240, 72410, 76309, 144820, 152618, 289640, 305236, 381545, 610472, 763090, 992017, 1526180, 1984034, 3052360, 3968068, 4960085, 7936136, 9920170, 19840340, 39680680]

約数ペア:

[(1, 39680680), (2, 19840340), (4, 9920170), (5, 7936136), (8, 4960085), (10, 3968068), (13, 3052360), (20, 1984034), (26, 1526180), (40, 992017), (52, 763090), (65, 610472), (104, 381545), (130, 305236), (137, 289640), (260, 152618), (274, 144820), (520, 76309), (548, 72410), (557, 71240), (685, 57928), (1096, 36205), (1114, 35620), (1370, 28964), (1781, 22280), (2228, 17810), (2740, 14482), (2785, 14248), (3562, 11140), (4456, 8905), (5480, 7241), (5570, 7124)]