82663640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{13163}}^1$

素因数の和:13331

約数の個数: 32

約数和(自身を含む): 187192080

約数和(自身を除く): 104528440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 13163, 26326, 52652, 65815, 105304, 131630, 263260, 526520, 2066591, 4133182, 8266364, 10332955, 16532728, 20665910, 41331820, 82663640]

約数ペア:

[(1, 82663640), (2, 41331820), (4, 20665910), (5, 16532728), (8, 10332955), (10, 8266364), (20, 4133182), (40, 2066591), (157, 526520), (314, 263260), (628, 131630), (785, 105304), (1256, 65815), (1570, 52652), (3140, 26326), (6280, 13163)]