403940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1063}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 893760

約数和(自身を除く): 489820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1063, 2126, 4252, 5315, 10630, 20197, 21260, 40394, 80788, 100985, 201970, 403940]

約数ペア:

[(1, 403940), (2, 201970), (4, 100985), (5, 80788), (10, 40394), (19, 21260), (20, 20197), (38, 10630), (76, 5315), (95, 4252), (190, 2126), (380, 1063)]