20480124

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{509}}^1$

素因数の和:1002

約数の個数: 48

約数和(自身を含む): 54835200

約数和(自身を除く): 34355076

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 479, 509, 958, 1018, 1437, 1527, 1916, 2036, 2874, 3054, 3353, 3563, 5748, 6108, 6706, 7126, 10059, 10689, 13412, 14252, 20118, 21378, 40236, 42756, 243811, 487622, 731433, 975244, 1462866, 1706677, 2925732, 3413354, 5120031, 6826708, 10240062, 20480124]

約数ペア:

[(1, 20480124), (2, 10240062), (3, 6826708), (4, 5120031), (6, 3413354), (7, 2925732), (12, 1706677), (14, 1462866), (21, 975244), (28, 731433), (42, 487622), (84, 243811), (479, 42756), (509, 40236), (958, 21378), (1018, 20118), (1437, 14252), (1527, 13412), (1916, 10689), (2036, 10059), (2874, 7126), (3054, 6706), (3353, 6108), (3563, 5748)]