208757360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{2287}}^1$

素因数の和:2470

約数の個数: 80

約数和(自身を含む): 558345216

約数和(自身を除く): 349587856

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 163, 280, 326, 560, 652, 815, 1141, 1304, 1630, 2282, 2287, 2608, 3260, 4564, 4574, 5705, 6520, 9128, 9148, 11410, 11435, 13040, 16009, 18256, 18296, 22820, 22870, 32018, 36592, 45640, 45740, 64036, 80045, 91280, 91480, 128072, 160090, 182960, 256144, 320180, 372781, 640360, 745562, 1280720, 1491124, 1863905, 2609467, 2982248, 3727810, 5218934, 5964496, 7455620, 10437868, 13047335, 14911240, 20875736, 26094670, 29822480, 41751472, 52189340, 104378680, 208757360]

約数ペア:

[(1, 208757360), (2, 104378680), (4, 52189340), (5, 41751472), (7, 29822480), (8, 26094670), (10, 20875736), (14, 14911240), (16, 13047335), (20, 10437868), (28, 7455620), (35, 5964496), (40, 5218934), (56, 3727810), (70, 2982248), (80, 2609467), (112, 1863905), (140, 1491124), (163, 1280720), (280, 745562), (326, 640360), (560, 372781), (652, 320180), (815, 256144), (1141, 182960), (1304, 160090), (1630, 128072), (2282, 91480), (2287, 91280), (2608, 80045), (3260, 64036), (4564, 45740), (4574, 45640), (5705, 36592), (6520, 32018), (9128, 22870), (9148, 22820), (11410, 18296), (11435, 18256), (13040, 16009)]