220318475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{4877}}^1$

素因数の和:5039

約数の個数: 24

約数和(自身を含む): 296387280

約数和(自身を除く): 76068805

約数列:

[1, 5, 13, 25, 65, 139, 325, 695, 1807, 3475, 4877, 9035, 24385, 45175, 63401, 121925, 317005, 677903, 1585025, 3389515, 8812739, 16947575, 44063695, 220318475]

約数ペア:

[(1, 220318475), (5, 44063695), (13, 16947575), (25, 8812739), (65, 3389515), (139, 1585025), (325, 677903), (695, 317005), (1807, 121925), (3475, 63401), (4877, 45175), (9035, 24385)]