10889980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7669}}^1$

素因数の和:7749

約数の個数: 24

約数和(自身を含む): 23194080

約数和(自身を除く): 12304100

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 7669, 15338, 30676, 38345, 76690, 153380, 544499, 1088998, 2177996, 2722495, 5444990, 10889980]

約数ペア:

[(1, 10889980), (2, 5444990), (4, 2722495), (5, 2177996), (10, 1088998), (20, 544499), (71, 153380), (142, 76690), (284, 38345), (355, 30676), (710, 15338), (1420, 7669)]