28533320

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1987}}^1$

素因数の和:2357

約数の個数: 32

約数和(自身を含む): 64411200

約数和(自身を除く): 35877880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 1987, 2872, 3590, 3974, 7180, 7948, 9935, 14360, 15896, 19870, 39740, 79480, 713333, 1426666, 2853332, 3566665, 5706664, 7133330, 14266660, 28533320]

約数ペア:

[(1, 28533320), (2, 14266660), (4, 7133330), (5, 5706664), (8, 3566665), (10, 2853332), (20, 1426666), (40, 713333), (359, 79480), (718, 39740), (1436, 19870), (1795, 15896), (1987, 14360), (2872, 9935), (3590, 7948), (3974, 7180)]