195207980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{2281}}^1$

素因数の和:2690

約数の個数: 48

約数和(自身を含む): 448549920

約数和(自身を除く): 253341940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 389, 778, 1556, 1945, 2281, 3890, 4279, 4562, 7780, 8558, 9124, 11405, 17116, 21395, 22810, 25091, 42790, 45620, 50182, 85580, 100364, 125455, 250910, 501820, 887309, 1774618, 3549236, 4436545, 8873090, 9760399, 17746180, 19520798, 39041596, 48801995, 97603990, 195207980]

約数ペア:

[(1, 195207980), (2, 97603990), (4, 48801995), (5, 39041596), (10, 19520798), (11, 17746180), (20, 9760399), (22, 8873090), (44, 4436545), (55, 3549236), (110, 1774618), (220, 887309), (389, 501820), (778, 250910), (1556, 125455), (1945, 100364), (2281, 85580), (3890, 50182), (4279, 45620), (4562, 42790), (7780, 25091), (8558, 22810), (9124, 21395), (11405, 17116)]