20839400

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3593}}^1$

素因数の和:3638

約数の個数: 48

約数和(自身を含む): 50136300

約数和(自身を除く): 29296900

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2900, 3593, 5800, 7186, 14372, 17965, 28744, 35930, 71860, 89825, 104197, 143720, 179650, 208394, 359300, 416788, 520985, 718600, 833576, 1041970, 2083940, 2604925, 4167880, 5209850, 10419700, 20839400]

約数ペア:

[(1, 20839400), (2, 10419700), (4, 5209850), (5, 4167880), (8, 2604925), (10, 2083940), (20, 1041970), (25, 833576), (29, 718600), (40, 520985), (50, 416788), (58, 359300), (100, 208394), (116, 179650), (145, 143720), (200, 104197), (232, 89825), (290, 71860), (580, 35930), (725, 28744), (1160, 17965), (1450, 14372), (2900, 7186), (3593, 5800)]