20837200

素因数分解:

$2^4\times 5^2\times {\mathrm{113}}^1\times {\mathrm{461}}^1$

素因数の和:592

約数の個数: 60

約数和(自身を含む): 50613948

約数和(自身を除く): 29776748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 113, 200, 226, 400, 452, 461, 565, 904, 922, 1130, 1808, 1844, 2260, 2305, 2825, 3688, 4520, 4610, 5650, 7376, 9040, 9220, 11300, 11525, 18440, 22600, 23050, 36880, 45200, 46100, 52093, 92200, 104186, 184400, 208372, 260465, 416744, 520930, 833488, 1041860, 1302325, 2083720, 2604650, 4167440, 5209300, 10418600, 20837200]

約数ペア:

[(1, 20837200), (2, 10418600), (4, 5209300), (5, 4167440), (8, 2604650), (10, 2083720), (16, 1302325), (20, 1041860), (25, 833488), (40, 520930), (50, 416744), (80, 260465), (100, 208372), (113, 184400), (200, 104186), (226, 92200), (400, 52093), (452, 46100), (461, 45200), (565, 36880), (904, 23050), (922, 22600), (1130, 18440), (1808, 11525), (1844, 11300), (2260, 9220), (2305, 9040), (2825, 7376), (3688, 5650), (4520, 4610)]