208756880

素因数分解:

$2^4\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{2531}}^1$

素因数の和:3575

約数の個数: 40

約数和(自身を含む): 486022464

約数和(自身を除く): 277265584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1031, 2062, 2531, 4124, 5062, 5155, 8248, 10124, 10310, 12655, 16496, 20248, 20620, 25310, 40496, 41240, 50620, 82480, 101240, 202480, 2609461, 5218922, 10437844, 13047305, 20875688, 26094610, 41751376, 52189220, 104378440, 208756880]

約数ペア:

[(1, 208756880), (2, 104378440), (4, 52189220), (5, 41751376), (8, 26094610), (10, 20875688), (16, 13047305), (20, 10437844), (40, 5218922), (80, 2609461), (1031, 202480), (2062, 101240), (2531, 82480), (4124, 50620), (5062, 41240), (5155, 40496), (8248, 25310), (10124, 20620), (10310, 20248), (12655, 16496)]