12989240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 32542560

約数和(自身を除く): 19553320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 212, 220, 265, 424, 440, 530, 557, 583, 1060, 1114, 1166, 2120, 2228, 2332, 2785, 2915, 4456, 4664, 5570, 5830, 6127, 11140, 11660, 12254, 22280, 23320, 24508, 29521, 30635, 49016, 59042, 61270, 118084, 122540, 147605, 236168, 245080, 295210, 324731, 590420, 649462, 1180840, 1298924, 1623655, 2597848, 3247310, 6494620, 12989240]

約数ペア:

[(1, 12989240), (2, 6494620), (4, 3247310), (5, 2597848), (8, 1623655), (10, 1298924), (11, 1180840), (20, 649462), (22, 590420), (40, 324731), (44, 295210), (53, 245080), (55, 236168), (88, 147605), (106, 122540), (110, 118084), (212, 61270), (220, 59042), (265, 49016), (424, 30635), (440, 29521), (530, 24508), (557, 23320), (583, 22280), (1060, 12254), (1114, 11660), (1166, 11140), (2120, 6127), (2228, 5830), (2332, 5570), (2785, 4664), (2915, 4456)]