289450120

素因数分解:

$2^3\times 5^1\times {\mathrm{479}}^1\times {\mathrm{15107}}^1$

素因数の和:15597

約数の個数: 32

約数和(自身を含む): 652665600

約数和(自身を除く): 363215480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 479, 958, 1916, 2395, 3832, 4790, 9580, 15107, 19160, 30214, 60428, 75535, 120856, 151070, 302140, 604280, 7236253, 14472506, 28945012, 36181265, 57890024, 72362530, 144725060, 289450120]

約数ペア:

[(1, 289450120), (2, 144725060), (4, 72362530), (5, 57890024), (8, 36181265), (10, 28945012), (20, 14472506), (40, 7236253), (479, 604280), (958, 302140), (1916, 151070), (2395, 120856), (3832, 75535), (4790, 60428), (9580, 30214), (15107, 19160)]