20887360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5021}}^1$

素因数の和:5051

約数の個数: 56

約数和(自身を含む): 53574696

約数和(自身を除く): 32687336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 5021, 10042, 20084, 25105, 40168, 50210, 65273, 80336, 100420, 130546, 160672, 200840, 261092, 321344, 326365, 401680, 522184, 652730, 803360, 1044368, 1305460, 1606720, 2088736, 2610920, 4177472, 5221840, 10443680, 20887360]

約数ペア:

[(1, 20887360), (2, 10443680), (4, 5221840), (5, 4177472), (8, 2610920), (10, 2088736), (13, 1606720), (16, 1305460), (20, 1044368), (26, 803360), (32, 652730), (40, 522184), (52, 401680), (64, 326365), (65, 321344), (80, 261092), (104, 200840), (130, 160672), (160, 130546), (208, 100420), (260, 80336), (320, 65273), (416, 50210), (520, 40168), (832, 25105), (1040, 20084), (2080, 10042), (4160, 5021)]