218103680

素因数分解:

$2^7\times 5^1\times {\mathrm{340787}}^1$

素因数の和:340806

約数の個数: 32

約数和(自身を含む): 521405640

約数和(自身を除く): 303301960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 340787, 681574, 1363148, 1703935, 2726296, 3407870, 5452592, 6815740, 10905184, 13631480, 21810368, 27262960, 43620736, 54525920, 109051840, 218103680]

約数ペア:

[(1, 218103680), (2, 109051840), (4, 54525920), (5, 43620736), (8, 27262960), (10, 21810368), (16, 13631480), (20, 10905184), (32, 6815740), (40, 5452592), (64, 3407870), (80, 2726296), (128, 1703935), (160, 1363148), (320, 681574), (640, 340787)]