257931405

素因数分解:

$3^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{12653}}^1$

素因数の和:12818

約数の個数: 32

約数和(自身を含む): 461617920

約数和(自身を除く): 203686515

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151, 453, 755, 1359, 2265, 4077, 6795, 12653, 20385, 37959, 63265, 113877, 189795, 341631, 569385, 1708155, 1910603, 5731809, 9553015, 17195427, 28659045, 51586281, 85977135, 257931405]

約数ペア:

[(1, 257931405), (3, 85977135), (5, 51586281), (9, 28659045), (15, 17195427), (27, 9553015), (45, 5731809), (135, 1910603), (151, 1708155), (453, 569385), (755, 341631), (1359, 189795), (2265, 113877), (4077, 63265), (6795, 37959), (12653, 20385)]