20189940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{336499}}^1$

素因数の和:336511

約数の個数: 24

約数和(自身を含む): 56532000

約数和(自身を除く): 36342060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 336499, 672998, 1009497, 1345996, 1682495, 2018994, 3364990, 4037988, 5047485, 6729980, 10094970, 20189940]

約数ペア:

[(1, 20189940), (2, 10094970), (3, 6729980), (4, 5047485), (5, 4037988), (6, 3364990), (10, 2018994), (12, 1682495), (15, 1345996), (20, 1009497), (30, 672998), (60, 336499)]