69819980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{49169}}^1$

素因数の和:49249

約数の個数: 24

約数和(自身を含む): 148690080

約数和(自身を除く): 78870100

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 49169, 98338, 196676, 245845, 491690, 983380, 3490999, 6981998, 13963996, 17454995, 34909990, 69819980]

約数ペア:

[(1, 69819980), (2, 34909990), (4, 17454995), (5, 13963996), (10, 6981998), (20, 3490999), (71, 983380), (142, 491690), (284, 245845), (355, 196676), (710, 98338), (1420, 49169)]