18729680

素因数分解:

$2^4\times 5^1\times {\mathrm{234121}}^1$

素因数の和:234134

約数の個数: 20

約数和(自身を含む): 43546692

約数和(自身を除く): 24817012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 234121, 468242, 936484, 1170605, 1872968, 2341210, 3745936, 4682420, 9364840, 18729680]

約数ペア:

[(1, 18729680), (2, 9364840), (4, 4682420), (5, 3745936), (8, 2341210), (10, 1872968), (16, 1170605), (20, 936484), (40, 468242), (80, 234121)]