2045420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7867}}^1$

素因数の和:7889

約数の個数: 24

約数和(自身を含む): 4626384

約数和(自身を除く): 2580964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 7867, 15734, 31468, 39335, 78670, 102271, 157340, 204542, 409084, 511355, 1022710, 2045420]

約数ペア:

[(1, 2045420), (2, 1022710), (4, 511355), (5, 409084), (10, 204542), (13, 157340), (20, 102271), (26, 78670), (52, 39335), (65, 31468), (130, 15734), (260, 7867)]