28528520

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{3061}}^1$

素因数の和:3305

約数の個数: 32

約数和(自身を含む): 64485720

約数和(自身を除く): 35957200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 2330, 3061, 4660, 6122, 9320, 12244, 15305, 24488, 30610, 61220, 122440, 713213, 1426426, 2852852, 3566065, 5705704, 7132130, 14264260, 28528520]

約数ペア:

[(1, 28528520), (2, 14264260), (4, 7132130), (5, 5705704), (8, 3566065), (10, 2852852), (20, 1426426), (40, 713213), (233, 122440), (466, 61220), (932, 30610), (1165, 24488), (1864, 15305), (2330, 12244), (3061, 9320), (4660, 6122)]