9017020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 20311200

約数和(自身を除く): 11294180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 389, 610, 778, 1159, 1220, 1556, 1945, 2318, 3890, 4636, 5795, 7391, 7780, 11590, 14782, 23180, 23729, 29564, 36955, 47458, 73910, 94916, 118645, 147820, 237290, 450851, 474580, 901702, 1803404, 2254255, 4508510, 9017020]

約数ペア:

[(1, 9017020), (2, 4508510), (4, 2254255), (5, 1803404), (10, 901702), (19, 474580), (20, 450851), (38, 237290), (61, 147820), (76, 118645), (95, 94916), (122, 73910), (190, 47458), (244, 36955), (305, 29564), (380, 23729), (389, 23180), (610, 14782), (778, 11590), (1159, 7780), (1220, 7391), (1556, 5795), (1945, 4636), (2318, 3890)]