208409840

素因数分解:

$2^4\times 5^1\times {\mathrm{271}}^1\times {\mathrm{9613}}^1$

素因数の和:9897

約数の個数: 40

約数和(自身を含む): 486391488

約数和(自身を除く): 277981648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271, 542, 1084, 1355, 2168, 2710, 4336, 5420, 9613, 10840, 19226, 21680, 38452, 48065, 76904, 96130, 153808, 192260, 384520, 769040, 2605123, 5210246, 10420492, 13025615, 20840984, 26051230, 41681968, 52102460, 104204920, 208409840]

約数ペア:

[(1, 208409840), (2, 104204920), (4, 52102460), (5, 41681968), (8, 26051230), (10, 20840984), (16, 13025615), (20, 10420492), (40, 5210246), (80, 2605123), (271, 769040), (542, 384520), (1084, 192260), (1355, 153808), (2168, 96130), (2710, 76904), (4336, 48065), (5420, 38452), (9613, 21680), (10840, 19226)]