208021760

素因数分解:

$2^8\times 5^1\times {\mathrm{162517}}^1$

素因数の和:162538

約数の個数: 36

約数和(自身を含む): 498280188

約数和(自身を除く): 290258428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 162517, 325034, 650068, 812585, 1300136, 1625170, 2600272, 3250340, 5200544, 6500680, 10401088, 13001360, 20802176, 26002720, 41604352, 52005440, 104010880, 208021760]

約数ペア:

[(1, 208021760), (2, 104010880), (4, 52005440), (5, 41604352), (8, 26002720), (10, 20802176), (16, 13001360), (20, 10401088), (32, 6500680), (40, 5200544), (64, 3250340), (80, 2600272), (128, 1625170), (160, 1300136), (256, 812585), (320, 650068), (640, 325034), (1280, 162517)]