254174080

素因数分解:

$2^7\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1277}}^1$

素因数の和:1607

約数の個数: 64

約数和(自身を含む): 610066080

約数和(自身を除く): 355892000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 311, 320, 622, 640, 1244, 1277, 1555, 2488, 2554, 3110, 4976, 5108, 6220, 6385, 9952, 10216, 12440, 12770, 19904, 20432, 24880, 25540, 39808, 40864, 49760, 51080, 81728, 99520, 102160, 163456, 199040, 204320, 397147, 408640, 794294, 817280, 1588588, 1985735, 3177176, 3971470, 6354352, 7942940, 12708704, 15885880, 25417408, 31771760, 50834816, 63543520, 127087040, 254174080]

約数ペア:

[(1, 254174080), (2, 127087040), (4, 63543520), (5, 50834816), (8, 31771760), (10, 25417408), (16, 15885880), (20, 12708704), (32, 7942940), (40, 6354352), (64, 3971470), (80, 3177176), (128, 1985735), (160, 1588588), (311, 817280), (320, 794294), (622, 408640), (640, 397147), (1244, 204320), (1277, 199040), (1555, 163456), (2488, 102160), (2554, 99520), (3110, 81728), (4976, 51080), (5108, 49760), (6220, 40864), (6385, 39808), (9952, 25540), (10216, 24880), (12440, 20432), (12770, 19904)]