21108400

素因数分解:

$2^4\times 5^2\times {\mathrm{113}}^1\times {\mathrm{467}}^1$

素因数の和:598

約数の個数: 60

約数和(自身を含む): 51271272

約数和(自身を除く): 30162872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 113, 200, 226, 400, 452, 467, 565, 904, 934, 1130, 1808, 1868, 2260, 2335, 2825, 3736, 4520, 4670, 5650, 7472, 9040, 9340, 11300, 11675, 18680, 22600, 23350, 37360, 45200, 46700, 52771, 93400, 105542, 186800, 211084, 263855, 422168, 527710, 844336, 1055420, 1319275, 2110840, 2638550, 4221680, 5277100, 10554200, 21108400]

約数ペア:

[(1, 21108400), (2, 10554200), (4, 5277100), (5, 4221680), (8, 2638550), (10, 2110840), (16, 1319275), (20, 1055420), (25, 844336), (40, 527710), (50, 422168), (80, 263855), (100, 211084), (113, 186800), (200, 105542), (226, 93400), (400, 52771), (452, 46700), (467, 45200), (565, 37360), (904, 23350), (934, 22600), (1130, 18680), (1808, 11675), (1868, 11300), (2260, 9340), (2335, 9040), (2825, 7472), (3736, 5650), (4520, 4670)]