20282820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3347}}^1$

素因数の和:3460

約数の個数: 48

約数和(自身を含む): 57371328

約数和(自身を除く): 37088508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 404, 505, 606, 1010, 1212, 1515, 2020, 3030, 3347, 6060, 6694, 10041, 13388, 16735, 20082, 33470, 40164, 50205, 66940, 100410, 200820, 338047, 676094, 1014141, 1352188, 1690235, 2028282, 3380470, 4056564, 5070705, 6760940, 10141410, 20282820]

約数ペア:

[(1, 20282820), (2, 10141410), (3, 6760940), (4, 5070705), (5, 4056564), (6, 3380470), (10, 2028282), (12, 1690235), (15, 1352188), (20, 1014141), (30, 676094), (60, 338047), (101, 200820), (202, 100410), (303, 66940), (404, 50205), (505, 40164), (606, 33470), (1010, 20082), (1212, 16735), (1515, 13388), (2020, 10041), (3030, 6694), (3347, 6060)]