31397275

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 49344064

約数和(自身を除く): 17946789

約数列:

[1, 5, 7, 13, 25, 35, 37, 65, 91, 175, 185, 259, 325, 373, 455, 481, 925, 1295, 1865, 2275, 2405, 2611, 3367, 4849, 6475, 9325, 12025, 13055, 13801, 16835, 24245, 33943, 65275, 69005, 84175, 96607, 121225, 169715, 179413, 345025, 483035, 848575, 897065, 1255891, 2415175, 4485325, 6279455, 31397275]

約数ペア:

[(1, 31397275), (5, 6279455), (7, 4485325), (13, 2415175), (25, 1255891), (35, 897065), (37, 848575), (65, 483035), (91, 345025), (175, 179413), (185, 169715), (259, 121225), (325, 96607), (373, 84175), (455, 69005), (481, 65275), (925, 33943), (1295, 24245), (1865, 16835), (2275, 13801), (2405, 13055), (2611, 12025), (3367, 9325), (4849, 6475)]