138568720

素因数分解:

$2^4\times 5^1\times {\mathrm{1732109}}^1$

素因数の和:1732122

約数の個数: 20

約数和(自身を含む): 322172460

約数和(自身を除く): 183603740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1732109, 3464218, 6928436, 8660545, 13856872, 17321090, 27713744, 34642180, 69284360, 138568720]

約数ペア:

[(1, 138568720), (2, 69284360), (4, 34642180), (5, 27713744), (8, 17321090), (10, 13856872), (16, 8660545), (20, 6928436), (40, 3464218), (80, 1732109)]