20187712

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 56

約数和(自身を含む): 42291000

約数和(自身を除く): 22103288

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 73, 116, 146, 149, 232, 292, 298, 464, 584, 596, 928, 1168, 1192, 1856, 2117, 2336, 2384, 4234, 4321, 4672, 4768, 8468, 8642, 9536, 10877, 16936, 17284, 21754, 33872, 34568, 43508, 67744, 69136, 87016, 135488, 138272, 174032, 276544, 315433, 348064, 630866, 696128, 1261732, 2523464, 5046928, 10093856, 20187712]

約数ペア:

[(1, 20187712), (2, 10093856), (4, 5046928), (8, 2523464), (16, 1261732), (29, 696128), (32, 630866), (58, 348064), (64, 315433), (73, 276544), (116, 174032), (146, 138272), (149, 135488), (232, 87016), (292, 69136), (298, 67744), (464, 43508), (584, 34568), (596, 33872), (928, 21754), (1168, 17284), (1192, 16936), (1856, 10877), (2117, 9536), (2336, 8642), (2384, 8468), (4234, 4768), (4321, 4672)]