20713960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{12043}}^1$

素因数の和:12097

約数の個数: 32

約数和(自身を含む): 47694240

約数和(自身を除く): 26980280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 12043, 24086, 48172, 60215, 96344, 120430, 240860, 481720, 517849, 1035698, 2071396, 2589245, 4142792, 5178490, 10356980, 20713960]

約数ペア:

[(1, 20713960), (2, 10356980), (4, 5178490), (5, 4142792), (8, 2589245), (10, 2071396), (20, 1035698), (40, 517849), (43, 481720), (86, 240860), (172, 120430), (215, 96344), (344, 60215), (430, 48172), (860, 24086), (1720, 12043)]