28427200

素因数分解:

$2^6\times 5^2\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:294

約数の個数: 84

約数和(自身を含む): 71023480

約数和(自身を除く): 42596280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 109, 160, 163, 200, 218, 320, 326, 400, 436, 545, 652, 800, 815, 872, 1090, 1304, 1600, 1630, 1744, 2180, 2608, 2725, 3260, 3488, 4075, 4360, 5216, 5450, 6520, 6976, 8150, 8720, 10432, 10900, 13040, 16300, 17440, 17767, 21800, 26080, 32600, 34880, 35534, 43600, 52160, 65200, 71068, 87200, 88835, 130400, 142136, 174400, 177670, 260800, 284272, 355340, 444175, 568544, 710680, 888350, 1137088, 1421360, 1776700, 2842720, 3553400, 5685440, 7106800, 14213600, 28427200]

約数ペア:

[(1, 28427200), (2, 14213600), (4, 7106800), (5, 5685440), (8, 3553400), (10, 2842720), (16, 1776700), (20, 1421360), (25, 1137088), (32, 888350), (40, 710680), (50, 568544), (64, 444175), (80, 355340), (100, 284272), (109, 260800), (160, 177670), (163, 174400), (200, 142136), (218, 130400), (320, 88835), (326, 87200), (400, 71068), (436, 65200), (545, 52160), (652, 43600), (800, 35534), (815, 34880), (872, 32600), (1090, 26080), (1304, 21800), (1600, 17767), (1630, 17440), (1744, 16300), (2180, 13040), (2608, 10900), (2725, 10432), (3260, 8720), (3488, 8150), (4075, 6976), (4360, 6520), (5216, 5450)]