85949980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{138629}}^1$

素因数の和:138669

約数の個数: 24

約数和(自身を含む): 186318720

約数和(自身を除く): 100368740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 138629, 277258, 554516, 693145, 1386290, 2772580, 4297499, 8594998, 17189996, 21487495, 42974990, 85949980]

約数ペア:

[(1, 85949980), (2, 42974990), (4, 21487495), (5, 17189996), (10, 8594998), (20, 4297499), (31, 2772580), (62, 1386290), (124, 693145), (155, 554516), (310, 277258), (620, 138629)]