20676920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46993}}^1$

素因数の和:47015

約数の個数: 32

約数和(自身を含む): 50753520

約数和(自身を除く): 30076600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46993, 93986, 187972, 234965, 375944, 469930, 516923, 939860, 1033846, 1879720, 2067692, 2584615, 4135384, 5169230, 10338460, 20676920]

約数ペア:

[(1, 20676920), (2, 10338460), (4, 5169230), (5, 4135384), (8, 2584615), (10, 2067692), (11, 1879720), (20, 1033846), (22, 939860), (40, 516923), (44, 469930), (55, 375944), (88, 234965), (110, 187972), (220, 93986), (440, 46993)]