28536920

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1453}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 64383120

約数和(自身を除く): 35846200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1453, 1964, 2455, 2906, 3928, 4910, 5812, 7265, 9820, 11624, 14530, 19640, 29060, 58120, 713423, 1426846, 2853692, 3567115, 5707384, 7134230, 14268460, 28536920]

約数ペア:

[(1, 28536920), (2, 14268460), (4, 7134230), (5, 5707384), (8, 3567115), (10, 2853692), (20, 1426846), (40, 713423), (491, 58120), (982, 29060), (1453, 19640), (1964, 14530), (2455, 11624), (2906, 9820), (3928, 7265), (4910, 5812)]