6399940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4507}}^1$

素因数の和:4587

約数の個数: 24

約数和(自身を含む): 13632192

約数和(自身を除く): 7232252

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 4507, 9014, 18028, 22535, 45070, 90140, 319997, 639994, 1279988, 1599985, 3199970, 6399940]

約数ペア:

[(1, 6399940), (2, 3199970), (4, 1599985), (5, 1279988), (10, 639994), (20, 319997), (71, 90140), (142, 45070), (284, 22535), (355, 18028), (710, 9014), (1420, 4507)]