642116785

素因数分解:

$5^1\times {\mathrm{41}}^2\times {\mathrm{241}}^1\times {\mathrm{317}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 795571128

約数和(自身を除く): 153454343

約数列:

[1, 5, 41, 205, 241, 317, 1205, 1585, 1681, 8405, 9881, 12997, 49405, 64985, 76397, 381985, 405121, 532877, 2025605, 2664385, 3132277, 15661385, 128423357, 642116785]

約数ペア:

[(1, 642116785), (5, 128423357), (41, 15661385), (205, 3132277), (241, 2664385), (317, 2025605), (1205, 532877), (1585, 405121), (1681, 381985), (8405, 76397), (9881, 64985), (12997, 49405)]