19710250

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{1609}}^1$

素因数の和:1640

約数の個数: 48

約数和(自身を含む): 42948360

約数和(自身を除く): 23238110

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 350, 490, 875, 1225, 1609, 1750, 2450, 3218, 6125, 8045, 11263, 12250, 16090, 22526, 40225, 56315, 78841, 80450, 112630, 157682, 201125, 281575, 394205, 402250, 563150, 788410, 1407875, 1971025, 2815750, 3942050, 9855125, 19710250]

約数ペア:

[(1, 19710250), (2, 9855125), (5, 3942050), (7, 2815750), (10, 1971025), (14, 1407875), (25, 788410), (35, 563150), (49, 402250), (50, 394205), (70, 281575), (98, 201125), (125, 157682), (175, 112630), (245, 80450), (250, 78841), (350, 56315), (490, 40225), (875, 22526), (1225, 16090), (1609, 12250), (1750, 11263), (2450, 8045), (3218, 6125)]