2121990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5441}}^1$

素因数の和:5464

約数の個数: 32

約数和(自身を含む): 5485536

約数和(自身を除く): 3363546

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 5441, 10882, 16323, 27205, 32646, 54410, 70733, 81615, 141466, 163230, 212199, 353665, 424398, 707330, 1060995, 2121990]

約数ペア:

[(1, 2121990), (2, 1060995), (3, 707330), (5, 424398), (6, 353665), (10, 212199), (13, 163230), (15, 141466), (26, 81615), (30, 70733), (39, 54410), (65, 32646), (78, 27205), (130, 16323), (195, 10882), (390, 5441)]