86681890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{279619}}^1$

素因数の和:279657

約数の個数: 16

約数和(自身を含む): 161061120

約数和(自身を除く): 74379230

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 279619, 559238, 1398095, 2796190, 8668189, 17336378, 43340945, 86681890]

約数ペア:

[(1, 86681890), (2, 43340945), (5, 17336378), (10, 8668189), (31, 2796190), (62, 1398095), (155, 559238), (310, 279619)]