65863960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 153252000

約数和(自身を除く): 87388040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 149, 172, 215, 257, 298, 344, 430, 514, 596, 745, 860, 1028, 1192, 1285, 1490, 1720, 2056, 2570, 2980, 5140, 5960, 6407, 10280, 11051, 12814, 22102, 25628, 32035, 38293, 44204, 51256, 55255, 64070, 76586, 88408, 110510, 128140, 153172, 191465, 221020, 256280, 306344, 382930, 442040, 765860, 1531720, 1646599, 3293198, 6586396, 8232995, 13172792, 16465990, 32931980, 65863960]

約数ペア:

[(1, 65863960), (2, 32931980), (4, 16465990), (5, 13172792), (8, 8232995), (10, 6586396), (20, 3293198), (40, 1646599), (43, 1531720), (86, 765860), (149, 442040), (172, 382930), (215, 306344), (257, 256280), (298, 221020), (344, 191465), (430, 153172), (514, 128140), (596, 110510), (745, 88408), (860, 76586), (1028, 64070), (1192, 55255), (1285, 51256), (1490, 44204), (1720, 38293), (2056, 32035), (2570, 25628), (2980, 22102), (5140, 12814), (5960, 11051), (6407, 10280)]