9890450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:419

約数の個数: 48

約数和(自身を含む): 20088000

約数和(自身を除く): 10197550

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 95, 145, 190, 290, 359, 475, 551, 718, 725, 950, 1102, 1450, 1795, 2755, 3590, 5510, 6821, 8975, 10411, 13642, 13775, 17950, 20822, 27550, 34105, 52055, 68210, 104110, 170525, 197809, 260275, 341050, 395618, 520550, 989045, 1978090, 4945225, 9890450]

約数ペア:

[(1, 9890450), (2, 4945225), (5, 1978090), (10, 989045), (19, 520550), (25, 395618), (29, 341050), (38, 260275), (50, 197809), (58, 170525), (95, 104110), (145, 68210), (190, 52055), (290, 34105), (359, 27550), (475, 20822), (551, 17950), (718, 13775), (725, 13642), (950, 10411), (1102, 8975), (1450, 6821), (1795, 5510), (2755, 3590)]