218802025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{3019}}^1$

素因数の和:3265

約数の個数: 24

約数和(自身を含む): 293592320

約数和(自身を除く): 74790295

約数列:

[1, 5, 13, 25, 65, 223, 325, 1115, 2899, 3019, 5575, 14495, 15095, 39247, 72475, 75475, 196235, 673237, 981175, 3366185, 8752081, 16830925, 43760405, 218802025]

約数ペア:

[(1, 218802025), (5, 43760405), (13, 16830925), (25, 8752081), (65, 3366185), (223, 981175), (325, 673237), (1115, 196235), (2899, 75475), (3019, 72475), (5575, 39247), (14495, 15095)]