91489990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{295129}}^1$

素因数の和:295167

約数の個数: 16

約数和(自身を含む): 169994880

約数和(自身を除く): 78504890

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 295129, 590258, 1475645, 2951290, 9148999, 18297998, 45744995, 91489990]

約数ペア:

[(1, 91489990), (2, 45744995), (5, 18297998), (10, 9148999), (31, 2951290), (62, 1475645), (155, 590258), (310, 295129)]