388632920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43963}}^1$

素因数の和:44004

約数の個数: 64

約数和(自身を含む): 997103520

約数和(自身を除く): 608470600

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 43963, 87926, 175852, 219815, 351704, 439630, 571519, 747371, 879260, 1143038, 1494742, 1758520, 2286076, 2857595, 2989484, 3736855, 4572152, 5715190, 5978968, 7473710, 9715823, 11430380, 14947420, 19431646, 22860760, 29894840, 38863292, 48579115, 77726584, 97158230, 194316460, 388632920]

約数ペア:

[(1, 388632920), (2, 194316460), (4, 97158230), (5, 77726584), (8, 48579115), (10, 38863292), (13, 29894840), (17, 22860760), (20, 19431646), (26, 14947420), (34, 11430380), (40, 9715823), (52, 7473710), (65, 5978968), (68, 5715190), (85, 4572152), (104, 3736855), (130, 2989484), (136, 2857595), (170, 2286076), (221, 1758520), (260, 1494742), (340, 1143038), (442, 879260), (520, 747371), (680, 571519), (884, 439630), (1105, 351704), (1768, 219815), (2210, 175852), (4420, 87926), (8840, 43963)]