661120

素因数分解:

$2^7\times 5^1\times {\mathrm{1033}}^1$

素因数の和:1052

約数の個数: 32

約数和(自身を含む): 1582020

約数和(自身を除く): 920900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1033, 2066, 4132, 5165, 8264, 10330, 16528, 20660, 33056, 41320, 66112, 82640, 132224, 165280, 330560, 661120]

約数ペア:

[(1, 661120), (2, 330560), (4, 165280), (5, 132224), (8, 82640), (10, 66112), (16, 41320), (20, 33056), (32, 20660), (40, 16528), (64, 10330), (80, 8264), (128, 5165), (160, 4132), (320, 2066), (640, 1033)]