249321945

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1\times {\mathrm{523}}^1$

素因数の和:1113

約数の個数: 32

約数和(自身を含む): 407009664

約数和(自身を除く): 157687719

約数列:

[1, 3, 5, 15, 61, 183, 305, 521, 523, 915, 1563, 1569, 2605, 2615, 7815, 7845, 31781, 31903, 95343, 95709, 158905, 159515, 272483, 476715, 478545, 817449, 1362415, 4087245, 16621463, 49864389, 83107315, 249321945]

約数ペア:

[(1, 249321945), (3, 83107315), (5, 49864389), (15, 16621463), (61, 4087245), (183, 1362415), (305, 817449), (521, 478545), (523, 476715), (915, 272483), (1563, 159515), (1569, 158905), (2605, 95709), (2615, 95343), (7815, 31903), (7845, 31781)]