28153640

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1301}}^1$

素因数の和:1853

約数の個数: 32

約数和(自身を含む): 63511560

約数和(自身を除く): 35357920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 1082, 1301, 2164, 2602, 2705, 4328, 5204, 5410, 6505, 10408, 10820, 13010, 21640, 26020, 52040, 703841, 1407682, 2815364, 3519205, 5630728, 7038410, 14076820, 28153640]

約数ペア:

[(1, 28153640), (2, 14076820), (4, 7038410), (5, 5630728), (8, 3519205), (10, 2815364), (20, 1407682), (40, 703841), (541, 52040), (1082, 26020), (1301, 21640), (2164, 13010), (2602, 10820), (2705, 10408), (4328, 6505), (5204, 5410)]