86236420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139091}}^1$

素因数の和:139131

約数の個数: 24

約数和(自身を含む): 186939648

約数和(自身を除く): 100703228

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 139091, 278182, 556364, 695455, 1390910, 2781820, 4311821, 8623642, 17247284, 21559105, 43118210, 86236420]

約数ペア:

[(1, 86236420), (2, 43118210), (4, 21559105), (5, 17247284), (10, 8623642), (20, 4311821), (31, 2781820), (62, 1390910), (124, 695455), (155, 556364), (310, 278182), (620, 139091)]