18671980

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{1523}}^1$

素因数の和:2145

約数の個数: 24

約数和(自身を含む): 39300912

約数和(自身を除く): 20628932

約数列:

[1, 2, 4, 5, 10, 20, 613, 1226, 1523, 2452, 3046, 3065, 6092, 6130, 7615, 12260, 15230, 30460, 933599, 1867198, 3734396, 4667995, 9335990, 18671980]

約数ペア:

[(1, 18671980), (2, 9335990), (4, 4667995), (5, 3734396), (10, 1867198), (20, 933599), (613, 30460), (1226, 15230), (1523, 12260), (2452, 7615), (3046, 6130), (3065, 6092)]