354940020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1971889}}^1$

素因数の和:1971904

約数の個数: 36

約数和(自身を含む): 1076651940

約数和(自身を除く): 721711920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1971889, 3943778, 5915667, 7887556, 9859445, 11831334, 17747001, 19718890, 23662668, 29578335, 35494002, 39437780, 59156670, 70988004, 88735005, 118313340, 177470010, 354940020]

約数ペア:

[(1, 354940020), (2, 177470010), (3, 118313340), (4, 88735005), (5, 70988004), (6, 59156670), (9, 39437780), (10, 35494002), (12, 29578335), (15, 23662668), (18, 19718890), (20, 17747001), (30, 11831334), (36, 9859445), (45, 7887556), (60, 5915667), (90, 3943778), (180, 1971889)]