78660040

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{8663}}^1$

素因数の和:8901

約数の個数: 32

約数和(自身を含む): 177785280

約数和(自身を除く): 99125240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 8663, 9080, 17326, 34652, 43315, 69304, 86630, 173260, 346520, 1966501, 3933002, 7866004, 9832505, 15732008, 19665010, 39330020, 78660040]

約数ペア:

[(1, 78660040), (2, 39330020), (4, 19665010), (5, 15732008), (8, 9832505), (10, 7866004), (20, 3933002), (40, 1966501), (227, 346520), (454, 173260), (908, 86630), (1135, 69304), (1816, 43315), (2270, 34652), (4540, 17326), (8663, 9080)]