18601980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{797}}^1$

素因数の和:1198

約数の個数: 48

約数和(自身を含む): 52284960

約数和(自身を除く): 33682980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 389, 778, 797, 1167, 1556, 1594, 1945, 2334, 2391, 3188, 3890, 3985, 4668, 4782, 5835, 7780, 7970, 9564, 11670, 11955, 15940, 23340, 23910, 47820, 310033, 620066, 930099, 1240132, 1550165, 1860198, 3100330, 3720396, 4650495, 6200660, 9300990, 18601980]

約数ペア:

[(1, 18601980), (2, 9300990), (3, 6200660), (4, 4650495), (5, 3720396), (6, 3100330), (10, 1860198), (12, 1550165), (15, 1240132), (20, 930099), (30, 620066), (60, 310033), (389, 47820), (778, 23910), (797, 23340), (1167, 15940), (1556, 11955), (1594, 11670), (1945, 9564), (2334, 7970), (2391, 7780), (3188, 5835), (3890, 4782), (3985, 4668)]