20678680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46997}}^1$

素因数の和:47019

約数の個数: 32

約数和(自身を含む): 50757840

約数和(自身を除く): 30079160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46997, 93994, 187988, 234985, 375976, 469970, 516967, 939940, 1033934, 1879880, 2067868, 2584835, 4135736, 5169670, 10339340, 20678680]

約数ペア:

[(1, 20678680), (2, 10339340), (4, 5169670), (5, 4135736), (8, 2584835), (10, 2067868), (11, 1879880), (20, 1033934), (22, 939940), (40, 516967), (44, 469970), (55, 375976), (88, 234985), (110, 187988), (220, 93994), (440, 46997)]