90856720

素因数分解:

$2^4\times 5^1\times {\mathrm{479}}^1\times {\mathrm{2371}}^1$

素因数の和:2863

約数の個数: 40

約数和(自身を含む): 211772160

約数和(自身を除く): 120915440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 479, 958, 1916, 2371, 2395, 3832, 4742, 4790, 7664, 9484, 9580, 11855, 18968, 19160, 23710, 37936, 38320, 47420, 94840, 189680, 1135709, 2271418, 4542836, 5678545, 9085672, 11357090, 18171344, 22714180, 45428360, 90856720]

約数ペア:

[(1, 90856720), (2, 45428360), (4, 22714180), (5, 18171344), (8, 11357090), (10, 9085672), (16, 5678545), (20, 4542836), (40, 2271418), (80, 1135709), (479, 189680), (958, 94840), (1916, 47420), (2371, 38320), (2395, 37936), (3832, 23710), (4742, 19160), (4790, 18968), (7664, 11855), (9484, 9580)]