339959680

素因数分解:

$2^7\times 5^1\times {\mathrm{647}}^1\times {\mathrm{821}}^1$

素因数の和:1487

約数の個数: 64

約数和(自身を含む): 814963680

約数和(自身を除く): 475004000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 647, 821, 1294, 1642, 2588, 3235, 3284, 4105, 5176, 6470, 6568, 8210, 10352, 12940, 13136, 16420, 20704, 25880, 26272, 32840, 41408, 51760, 52544, 65680, 82816, 103520, 105088, 131360, 207040, 262720, 414080, 525440, 531187, 1062374, 2124748, 2655935, 4249496, 5311870, 8498992, 10623740, 16997984, 21247480, 33995968, 42494960, 67991936, 84989920, 169979840, 339959680]

約数ペア:

[(1, 339959680), (2, 169979840), (4, 84989920), (5, 67991936), (8, 42494960), (10, 33995968), (16, 21247480), (20, 16997984), (32, 10623740), (40, 8498992), (64, 5311870), (80, 4249496), (128, 2655935), (160, 2124748), (320, 1062374), (640, 531187), (647, 525440), (821, 414080), (1294, 262720), (1642, 207040), (2588, 131360), (3235, 105088), (3284, 103520), (4105, 82816), (5176, 65680), (6470, 52544), (6568, 51760), (8210, 41408), (10352, 32840), (12940, 26272), (13136, 25880), (16420, 20704)]