20789670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{863}}^1$

素因数の和:957

約数の個数: 64

約数和(自身を含む): 55240704

約数和(自身を除く): 34451034

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 73, 110, 146, 165, 219, 330, 365, 438, 730, 803, 863, 1095, 1606, 1726, 2190, 2409, 2589, 4015, 4315, 4818, 5178, 8030, 8630, 9493, 12045, 12945, 18986, 24090, 25890, 28479, 47465, 56958, 62999, 94930, 125998, 142395, 188997, 284790, 314995, 377994, 629990, 692989, 944985, 1385978, 1889970, 2078967, 3464945, 4157934, 6929890, 10394835, 20789670]

約数ペア:

[(1, 20789670), (2, 10394835), (3, 6929890), (5, 4157934), (6, 3464945), (10, 2078967), (11, 1889970), (15, 1385978), (22, 944985), (30, 692989), (33, 629990), (55, 377994), (66, 314995), (73, 284790), (110, 188997), (146, 142395), (165, 125998), (219, 94930), (330, 62999), (365, 56958), (438, 47465), (730, 28479), (803, 25890), (863, 24090), (1095, 18986), (1606, 12945), (1726, 12045), (2190, 9493), (2409, 8630), (2589, 8030), (4015, 5178), (4315, 4818)]