20564200

素因数分解:

$2^3\times 5^2\times {\mathrm{229}}^1\times {\mathrm{449}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 48127500

約数和(自身を除く): 27563300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 229, 449, 458, 898, 916, 1145, 1796, 1832, 2245, 2290, 3592, 4490, 4580, 5725, 8980, 9160, 11225, 11450, 17960, 22450, 22900, 44900, 45800, 89800, 102821, 205642, 411284, 514105, 822568, 1028210, 2056420, 2570525, 4112840, 5141050, 10282100, 20564200]

約数ペア:

[(1, 20564200), (2, 10282100), (4, 5141050), (5, 4112840), (8, 2570525), (10, 2056420), (20, 1028210), (25, 822568), (40, 514105), (50, 411284), (100, 205642), (200, 102821), (229, 89800), (449, 45800), (458, 44900), (898, 22900), (916, 22450), (1145, 17960), (1796, 11450), (1832, 11225), (2245, 9160), (2290, 8980), (3592, 5725), (4490, 4580)]