8736520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 21636720

約数和(自身を除く): 12900200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 317, 424, 520, 530, 634, 689, 1060, 1268, 1378, 1585, 2120, 2536, 2756, 3170, 3445, 4121, 5512, 6340, 6890, 8242, 12680, 13780, 16484, 16801, 20605, 27560, 32968, 33602, 41210, 67204, 82420, 84005, 134408, 164840, 168010, 218413, 336020, 436826, 672040, 873652, 1092065, 1747304, 2184130, 4368260, 8736520]

約数ペア:

[(1, 8736520), (2, 4368260), (4, 2184130), (5, 1747304), (8, 1092065), (10, 873652), (13, 672040), (20, 436826), (26, 336020), (40, 218413), (52, 168010), (53, 164840), (65, 134408), (104, 84005), (106, 82420), (130, 67204), (212, 41210), (260, 33602), (265, 32968), (317, 27560), (424, 20605), (520, 16801), (530, 16484), (634, 13780), (689, 12680), (1060, 8242), (1268, 6890), (1378, 6340), (1585, 5512), (2120, 4121), (2536, 3445), (2756, 3170)]