89531960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{319757}}^1$

素因数の和:319775

約数の個数: 32

約数和(自身を含む): 230225760

約数和(自身を除く): 140693800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 319757, 639514, 1279028, 1598785, 2238299, 2558056, 3197570, 4476598, 6395140, 8953196, 11191495, 12790280, 17906392, 22382990, 44765980, 89531960]

約数ペア:

[(1, 89531960), (2, 44765980), (4, 22382990), (5, 17906392), (7, 12790280), (8, 11191495), (10, 8953196), (14, 6395140), (20, 4476598), (28, 3197570), (35, 2558056), (40, 2238299), (56, 1598785), (70, 1279028), (140, 639514), (280, 319757)]