20188949980

素因数分解:

$2^2\times 5^1\times {\mathrm{30977}}^1\times {\mathrm{32587}}^1$

素因数の和:63573

約数の個数: 24

約数和(自身を含む): 42399464688

約数和(自身を除く): 22210514708

約数列:

[1, 2, 4, 5, 10, 20, 30977, 32587, 61954, 65174, 123908, 130348, 154885, 162935, 309770, 325870, 619540, 651740, 1009447499, 2018894998, 4037789996, 5047237495, 10094474990, 20188949980]

約数ペア:

[(1, 20188949980), (2, 10094474990), (4, 5047237495), (5, 4037789996), (10, 2018894998), (20, 1009447499), (30977, 651740), (32587, 619540), (61954, 325870), (65174, 309770), (123908, 162935), (130348, 154885)]