397715864

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17623}}^1$

素因数の和:17680

約数の個数: 64

約数和(自身を含む): 947466240

約数和(自身を除く): 549750376

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 364, 403, 434, 728, 806, 868, 1612, 1736, 2821, 3224, 5642, 11284, 17623, 22568, 35246, 70492, 123361, 140984, 229099, 246722, 458198, 493444, 546313, 916396, 986888, 1092626, 1603693, 1832792, 2185252, 3207386, 3824191, 4370504, 6414772, 7102069, 7648382, 12829544, 14204138, 15296764, 28408276, 30593528, 49714483, 56816552, 99428966, 198857932, 397715864]

約数ペア:

[(1, 397715864), (2, 198857932), (4, 99428966), (7, 56816552), (8, 49714483), (13, 30593528), (14, 28408276), (26, 15296764), (28, 14204138), (31, 12829544), (52, 7648382), (56, 7102069), (62, 6414772), (91, 4370504), (104, 3824191), (124, 3207386), (182, 2185252), (217, 1832792), (248, 1603693), (364, 1092626), (403, 986888), (434, 916396), (728, 546313), (806, 493444), (868, 458198), (1612, 246722), (1736, 229099), (2821, 140984), (3224, 123361), (5642, 70492), (11284, 35246), (17623, 22568)]