890804080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{655003}}^1$

素因数の和:655033

約数の個数: 40

約数和(自身を含む): 2192953392

約数和(自身を除く): 1302149312

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 655003, 1310006, 2620012, 3275015, 5240024, 6550030, 10480048, 11135051, 13100060, 22270102, 26200120, 44540204, 52400240, 55675255, 89080408, 111350510, 178160816, 222701020, 445402040, 890804080]

約数ペア:

[(1, 890804080), (2, 445402040), (4, 222701020), (5, 178160816), (8, 111350510), (10, 89080408), (16, 55675255), (17, 52400240), (20, 44540204), (34, 26200120), (40, 22270102), (68, 13100060), (80, 11135051), (85, 10480048), (136, 6550030), (170, 5240024), (272, 3275015), (340, 2620012), (680, 1310006), (1360, 655003)]