31484840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25391}}^1$

素因数の和:25433

約数の個数: 32

約数和(自身を含む): 73128960

約数和(自身を除く): 41644120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 25391, 50782, 101564, 126955, 203128, 253910, 507820, 787121, 1015640, 1574242, 3148484, 3935605, 6296968, 7871210, 15742420, 31484840]

約数ペア:

[(1, 31484840), (2, 15742420), (4, 7871210), (5, 6296968), (8, 3935605), (10, 3148484), (20, 1574242), (31, 1015640), (40, 787121), (62, 507820), (124, 253910), (155, 203128), (248, 126955), (310, 101564), (620, 50782), (1240, 25391)]