8729680

素因数分解:

$2^4\times 5^1\times {\mathrm{109121}}^1$

素因数の和:109134

約数の個数: 20

約数和(自身を含む): 20296692

約数和(自身を除く): 11567012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109121, 218242, 436484, 545605, 872968, 1091210, 1745936, 2182420, 4364840, 8729680]

約数ペア:

[(1, 8729680), (2, 4364840), (4, 2182420), (5, 1745936), (8, 1091210), (10, 872968), (16, 545605), (20, 436484), (40, 218242), (80, 109121)]