1258520

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 2877120

約数和(自身を除く): 1618600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 431, 584, 730, 862, 1460, 1724, 2155, 2920, 3448, 4310, 8620, 17240, 31463, 62926, 125852, 157315, 251704, 314630, 629260, 1258520]

約数ペア:

[(1, 1258520), (2, 629260), (4, 314630), (5, 251704), (8, 157315), (10, 125852), (20, 62926), (40, 31463), (73, 17240), (146, 8620), (292, 4310), (365, 3448), (431, 2920), (584, 2155), (730, 1724), (862, 1460)]