87253220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{140731}}^1$

素因数の和:140771

約数の個数: 24

約数和(自身を含む): 189143808

約数和(自身を除く): 101890588

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 140731, 281462, 562924, 703655, 1407310, 2814620, 4362661, 8725322, 17450644, 21813305, 43626610, 87253220]

約数ペア:

[(1, 87253220), (2, 43626610), (4, 21813305), (5, 17450644), (10, 8725322), (20, 4362661), (31, 2814620), (62, 1407310), (124, 703655), (155, 562924), (310, 281462), (620, 140731)]