78904225

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:274

約数の個数: 36

約数和(自身を含む): 106133584

約数和(自身を除く): 27229359

約数列:

[1, 5, 17, 25, 67, 85, 163, 289, 335, 425, 815, 1139, 1445, 1675, 2771, 4075, 5695, 7225, 10921, 13855, 19363, 28475, 47107, 54605, 69275, 96815, 185657, 235535, 273025, 484075, 928285, 1177675, 3156169, 4641425, 15780845, 78904225]

約数ペア:

[(1, 78904225), (5, 15780845), (17, 4641425), (25, 3156169), (67, 1177675), (85, 928285), (163, 484075), (289, 273025), (335, 235535), (425, 185657), (815, 96815), (1139, 69275), (1445, 54605), (1675, 47107), (2771, 28475), (4075, 19363), (5695, 13855), (7225, 10921)]