20808101884

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1013}}^1\times {\mathrm{2953}}^1$

素因数の和:4054

約数の個数: 48

約数和(自身を含む): 38244705408

約数和(自身を除く): 17436603524

約数列:

[1, 2, 4, 37, 47, 74, 94, 148, 188, 1013, 1739, 2026, 2953, 3478, 4052, 5906, 6956, 11812, 37481, 47611, 74962, 95222, 109261, 138791, 149924, 190444, 218522, 277582, 437044, 555164, 1761607, 2991389, 3523214, 5135267, 5982778, 7046428, 10270534, 11965556, 20541068, 110681393, 140595283, 221362786, 281190566, 442725572, 562381132, 5202025471, 10404050942, 20808101884]

約数ペア:

[(1, 20808101884), (2, 10404050942), (4, 5202025471), (37, 562381132), (47, 442725572), (74, 281190566), (94, 221362786), (148, 140595283), (188, 110681393), (1013, 20541068), (1739, 11965556), (2026, 10270534), (2953, 7046428), (3478, 5982778), (4052, 5135267), (5906, 3523214), (6956, 2991389), (11812, 1761607), (37481, 555164), (47611, 437044), (74962, 277582), (95222, 218522), (109261, 190444), (138791, 149924)]