12981720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{431}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 26209320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 251, 431, 502, 753, 862, 1004, 1255, 1293, 1506, 1724, 2008, 2155, 2510, 2586, 3012, 3448, 3765, 4310, 5020, 5172, 6024, 6465, 7530, 8620, 10040, 10344, 12930, 15060, 17240, 25860, 30120, 51720, 108181, 216362, 324543, 432724, 540905, 649086, 865448, 1081810, 1298172, 1622715, 2163620, 2596344, 3245430, 4327240, 6490860, 12981720]

約数ペア:

[(1, 12981720), (2, 6490860), (3, 4327240), (4, 3245430), (5, 2596344), (6, 2163620), (8, 1622715), (10, 1298172), (12, 1081810), (15, 865448), (20, 649086), (24, 540905), (30, 432724), (40, 324543), (60, 216362), (120, 108181), (251, 51720), (431, 30120), (502, 25860), (753, 17240), (862, 15060), (1004, 12930), (1255, 10344), (1293, 10040), (1506, 8620), (1724, 7530), (2008, 6465), (2155, 6024), (2510, 5172), (2586, 5020), (3012, 4310), (3448, 3765)]