391065728

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1163}}^1$

素因数の和:1285

約数の個数: 64

約数和(自身を含む): 812099520

約数和(自身を除く): 421033792

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 71, 74, 128, 142, 148, 284, 296, 568, 592, 1136, 1163, 1184, 2272, 2326, 2368, 2627, 4544, 4652, 4736, 5254, 9088, 9304, 10508, 18608, 21016, 37216, 42032, 43031, 74432, 82573, 84064, 86062, 148864, 165146, 168128, 172124, 330292, 336256, 344248, 660584, 688496, 1321168, 1376992, 2642336, 2753984, 3055201, 5284672, 5507968, 6110402, 10569344, 12220804, 24441608, 48883216, 97766432, 195532864, 391065728]

約数ペア:

[(1, 391065728), (2, 195532864), (4, 97766432), (8, 48883216), (16, 24441608), (32, 12220804), (37, 10569344), (64, 6110402), (71, 5507968), (74, 5284672), (128, 3055201), (142, 2753984), (148, 2642336), (284, 1376992), (296, 1321168), (568, 688496), (592, 660584), (1136, 344248), (1163, 336256), (1184, 330292), (2272, 172124), (2326, 168128), (2368, 165146), (2627, 148864), (4544, 86062), (4652, 84064), (4736, 82573), (5254, 74432), (9088, 43031), (9304, 42032), (10508, 37216), (18608, 21016)]