990139925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{1439}}^1\times {\mathrm{1619}}^1$

素因数の和:3085

約数の個数: 24

約数和(自身を含む): 1301702400

約数和(自身を除く): 311562475

約数列:

[1, 5, 17, 25, 85, 425, 1439, 1619, 7195, 8095, 24463, 27523, 35975, 40475, 122315, 137615, 611575, 688075, 2329741, 11648705, 39605597, 58243525, 198027985, 990139925]

約数ペア:

[(1, 990139925), (5, 198027985), (17, 58243525), (25, 39605597), (85, 11648705), (425, 2329741), (1439, 688075), (1619, 611575), (7195, 137615), (8095, 122315), (24463, 40475), (27523, 35975)]