18903680

素因数分解:

$2^7\times 5^1\times {\mathrm{29537}}^1$

素因数の和:29556

約数の個数: 32

約数和(自身を含む): 45193140

約数和(自身を除く): 26289460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 29537, 59074, 118148, 147685, 236296, 295370, 472592, 590740, 945184, 1181480, 1890368, 2362960, 3780736, 4725920, 9451840, 18903680]

約数ペア:

[(1, 18903680), (2, 9451840), (4, 4725920), (5, 3780736), (8, 2362960), (10, 1890368), (16, 1181480), (20, 945184), (32, 590740), (40, 472592), (64, 295370), (80, 236296), (128, 147685), (160, 118148), (320, 59074), (640, 29537)]