30740440

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1879}}^1$

素因数の和:2299

約数の個数: 32

約数和(自身を含む): 69372000

約数和(自身を除く): 38631560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 1879, 2045, 3272, 3758, 4090, 7516, 8180, 9395, 15032, 16360, 18790, 37580, 75160, 768511, 1537022, 3074044, 3842555, 6148088, 7685110, 15370220, 30740440]

約数ペア:

[(1, 30740440), (2, 15370220), (4, 7685110), (5, 6148088), (8, 3842555), (10, 3074044), (20, 1537022), (40, 768511), (409, 75160), (818, 37580), (1636, 18790), (1879, 16360), (2045, 15032), (3272, 9395), (3758, 8180), (4090, 7516)]