66397640

素因数分解:

$2^3\times 5^1\times {\mathrm{367}}^1\times {\mathrm{4523}}^1$

素因数の和:4901

約数の個数: 32

約数和(自身を含む): 149834880

約数和(自身を除く): 83437240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 367, 734, 1468, 1835, 2936, 3670, 4523, 7340, 9046, 14680, 18092, 22615, 36184, 45230, 90460, 180920, 1659941, 3319882, 6639764, 8299705, 13279528, 16599410, 33198820, 66397640]

約数ペア:

[(1, 66397640), (2, 33198820), (4, 16599410), (5, 13279528), (8, 8299705), (10, 6639764), (20, 3319882), (40, 1659941), (367, 180920), (734, 90460), (1468, 45230), (1835, 36184), (2936, 22615), (3670, 18092), (4523, 14680), (7340, 9046)]