31982780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{863}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 71850240

約数和(自身を除く): 39867460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 863, 1090, 1726, 1853, 2180, 3452, 3706, 4315, 7412, 8630, 9265, 14671, 17260, 18530, 29342, 37060, 58684, 73355, 94067, 146710, 188134, 293420, 376268, 470335, 940670, 1599139, 1881340, 3198278, 6396556, 7995695, 15991390, 31982780]

約数ペア:

[(1, 31982780), (2, 15991390), (4, 7995695), (5, 6396556), (10, 3198278), (17, 1881340), (20, 1599139), (34, 940670), (68, 470335), (85, 376268), (109, 293420), (170, 188134), (218, 146710), (340, 94067), (436, 73355), (545, 58684), (863, 37060), (1090, 29342), (1726, 18530), (1853, 17260), (2180, 14671), (3452, 9265), (3706, 8630), (4315, 7412)]