138729680

素因数分解:

$2^4\times 5^1\times {\mathrm{1734121}}^1$

素因数の和:1734134

約数の個数: 20

約数和(自身を含む): 322546692

約数和(自身を除く): 183817012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1734121, 3468242, 6936484, 8670605, 13872968, 17341210, 27745936, 34682420, 69364840, 138729680]

約数ペア:

[(1, 138729680), (2, 69364840), (4, 34682420), (5, 27745936), (8, 17341210), (10, 13872968), (16, 8670605), (20, 6936484), (40, 3468242), (80, 1734121)]