25499480

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2011}}^1$

素因数の和:2339

約数の個数: 32

約数和(自身を含む): 57583440

約数和(自身を除く): 32083960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2011, 2536, 3170, 4022, 6340, 8044, 10055, 12680, 16088, 20110, 40220, 80440, 637487, 1274974, 2549948, 3187435, 5099896, 6374870, 12749740, 25499480]

約数ペア:

[(1, 25499480), (2, 12749740), (4, 6374870), (5, 5099896), (8, 3187435), (10, 2549948), (20, 1274974), (40, 637487), (317, 80440), (634, 40220), (1268, 20110), (1585, 16088), (2011, 12680), (2536, 10055), (3170, 8044), (4022, 6340)]