31222520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{111509}}^1$

素因数の和:111527

約数の個数: 32

約数和(自身を含む): 80287200

約数和(自身を除く): 49064680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 111509, 223018, 446036, 557545, 780563, 892072, 1115090, 1561126, 2230180, 3122252, 3902815, 4460360, 6244504, 7805630, 15611260, 31222520]

約数ペア:

[(1, 31222520), (2, 15611260), (4, 7805630), (5, 6244504), (7, 4460360), (8, 3902815), (10, 3122252), (14, 2230180), (20, 1561126), (28, 1115090), (35, 892072), (40, 780563), (56, 557545), (70, 446036), (140, 223018), (280, 111509)]