129818560

素因数分解:

$2^6\times 5^1\times {\mathrm{405683}}^1$

素因数の和:405700

約数の個数: 28

約数和(自身を含む): 309131208

約数和(自身を除く): 179312648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 405683, 811366, 1622732, 2028415, 3245464, 4056830, 6490928, 8113660, 12981856, 16227320, 25963712, 32454640, 64909280, 129818560]

約数ペア:

[(1, 129818560), (2, 64909280), (4, 32454640), (5, 25963712), (8, 16227320), (10, 12981856), (16, 8113660), (20, 6490928), (32, 4056830), (40, 3245464), (64, 2028415), (80, 1622732), (160, 811366), (320, 405683)]