285031775

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{13687}}^1$

素因数の和:13728

約数の個数: 36

約数和(自身を含む): 435360528

約数和(自身を除く): 150328753

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 175, 245, 425, 595, 833, 1225, 2975, 4165, 13687, 20825, 68435, 95809, 232679, 342175, 479045, 670663, 1163395, 1628753, 2395225, 3353315, 5816975, 8143765, 11401271, 16766575, 40718825, 57006355, 285031775]

約数ペア:

[(1, 285031775), (5, 57006355), (7, 40718825), (17, 16766575), (25, 11401271), (35, 8143765), (49, 5816975), (85, 3353315), (119, 2395225), (175, 1628753), (245, 1163395), (425, 670663), (595, 479045), (833, 342175), (1225, 232679), (2975, 95809), (4165, 68435), (13687, 20825)]