155214620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{705521}}^1$

素因数の和:705541

約数の個数: 24

約数和(自身を含む): 355583088

約数和(自身を除く): 200368468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 705521, 1411042, 2822084, 3527605, 7055210, 7760731, 14110420, 15521462, 31042924, 38803655, 77607310, 155214620]

約数ペア:

[(1, 155214620), (2, 77607310), (4, 38803655), (5, 31042924), (10, 15521462), (11, 14110420), (20, 7760731), (22, 7055210), (44, 3527605), (55, 2822084), (110, 1411042), (220, 705521)]