257221228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1\times {\mathrm{241}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 499580928

約数和(自身を除く): 242359700

約数列:

[1, 2, 4, 11, 22, 44, 127, 191, 241, 254, 382, 482, 508, 764, 964, 1397, 2101, 2651, 2794, 4202, 5302, 5588, 8404, 10604, 24257, 30607, 46031, 48514, 61214, 92062, 97028, 122428, 184124, 266827, 336677, 506341, 533654, 673354, 1012682, 1067308, 1346708, 2025364, 5845937, 11691874, 23383748, 64305307, 128610614, 257221228]

約数ペア:

[(1, 257221228), (2, 128610614), (4, 64305307), (11, 23383748), (22, 11691874), (44, 5845937), (127, 2025364), (191, 1346708), (241, 1067308), (254, 1012682), (382, 673354), (482, 533654), (508, 506341), (764, 336677), (964, 266827), (1397, 184124), (2101, 122428), (2651, 97028), (2794, 92062), (4202, 61214), (5302, 48514), (5588, 46031), (8404, 30607), (10604, 24257)]