28715420

素因数分解:

$2^2\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{1409}}^1$

素因数の和:2437

約数の個数: 24

約数和(自身を含む): 60404400

約数和(自身を除く): 31688980

約数列:

[1, 2, 4, 5, 10, 20, 1019, 1409, 2038, 2818, 4076, 5095, 5636, 7045, 10190, 14090, 20380, 28180, 1435771, 2871542, 5743084, 7178855, 14357710, 28715420]

約数ペア:

[(1, 28715420), (2, 14357710), (4, 7178855), (5, 5743084), (10, 2871542), (20, 1435771), (1019, 28180), (1409, 20380), (2038, 14090), (2818, 10190), (4076, 7045), (5095, 5636)]