18318680

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1093}}^1$

素因数の和:1523

約数の個数: 32

約数和(自身を含む): 41353200

約数和(自身を除く): 23034520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1093, 1676, 2095, 2186, 3352, 4190, 4372, 5465, 8380, 8744, 10930, 16760, 21860, 43720, 457967, 915934, 1831868, 2289835, 3663736, 4579670, 9159340, 18318680]

約数ペア:

[(1, 18318680), (2, 9159340), (4, 4579670), (5, 3663736), (8, 2289835), (10, 1831868), (20, 915934), (40, 457967), (419, 43720), (838, 21860), (1093, 16760), (1676, 10930), (2095, 8744), (2186, 8380), (3352, 5465), (4190, 4372)]