28521640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101863}}^1$

素因数の和:101881

約数の個数: 32

約数和(自身を含む): 73342080

約数和(自身を除く): 44820440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 101863, 203726, 407452, 509315, 713041, 814904, 1018630, 1426082, 2037260, 2852164, 3565205, 4074520, 5704328, 7130410, 14260820, 28521640]

約数ペア:

[(1, 28521640), (2, 14260820), (4, 7130410), (5, 5704328), (7, 4074520), (8, 3565205), (10, 2852164), (14, 2037260), (20, 1426082), (28, 1018630), (35, 814904), (40, 713041), (56, 509315), (70, 407452), (140, 203726), (280, 101863)]