129039140

素因数分解:

$2^2\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{3307}}^1$

素因数の和:5267

約数の個数: 24

約数和(自身を含む): 271203072

約数和(自身を除く): 142163932

約数列:

[1, 2, 4, 5, 10, 20, 1951, 3307, 3902, 6614, 7804, 9755, 13228, 16535, 19510, 33070, 39020, 66140, 6451957, 12903914, 25807828, 32259785, 64519570, 129039140]

約数ペア:

[(1, 129039140), (2, 64519570), (4, 32259785), (5, 25807828), (10, 12903914), (20, 6451957), (1951, 66140), (3307, 39020), (3902, 33070), (6614, 19510), (7804, 16535), (9755, 13228)]