442715

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 670320

約数和(自身を除く): 227605

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 139, 245, 455, 637, 695, 973, 1807, 3185, 4865, 6811, 9035, 12649, 34055, 63245, 88543, 442715]

約数ペア:

[(1, 442715), (5, 88543), (7, 63245), (13, 34055), (35, 12649), (49, 9035), (65, 6811), (91, 4865), (139, 3185), (245, 1807), (455, 973), (637, 695)]