20376640

素因数分解:

$2^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1721}}^1$

素因数の和:1775

約数の個数: 56

約数和(自身を含む): 49862232

約数和(自身を除く): 29485592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 148, 160, 185, 296, 320, 370, 592, 740, 1184, 1480, 1721, 2368, 2960, 3442, 5920, 6884, 8605, 11840, 13768, 17210, 27536, 34420, 55072, 63677, 68840, 110144, 127354, 137680, 254708, 275360, 318385, 509416, 550720, 636770, 1018832, 1273540, 2037664, 2547080, 4075328, 5094160, 10188320, 20376640]

約数ペア:

[(1, 20376640), (2, 10188320), (4, 5094160), (5, 4075328), (8, 2547080), (10, 2037664), (16, 1273540), (20, 1018832), (32, 636770), (37, 550720), (40, 509416), (64, 318385), (74, 275360), (80, 254708), (148, 137680), (160, 127354), (185, 110144), (296, 68840), (320, 63677), (370, 55072), (592, 34420), (740, 27536), (1184, 17210), (1480, 13768), (1721, 11840), (2368, 8605), (2960, 6884), (3442, 5920)]