20084120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10247}}^1$

素因数の和:10272

約数の個数: 48

約数和(自身を含む): 52572240

約数和(自身を除く): 32488120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10247, 20494, 40988, 51235, 71729, 81976, 102470, 143458, 204940, 286916, 358645, 409880, 502103, 573832, 717290, 1004206, 1434580, 2008412, 2510515, 2869160, 4016824, 5021030, 10042060, 20084120]

約数ペア:

[(1, 20084120), (2, 10042060), (4, 5021030), (5, 4016824), (7, 2869160), (8, 2510515), (10, 2008412), (14, 1434580), (20, 1004206), (28, 717290), (35, 573832), (40, 502103), (49, 409880), (56, 358645), (70, 286916), (98, 204940), (140, 143458), (196, 102470), (245, 81976), (280, 71729), (392, 51235), (490, 40988), (980, 20494), (1960, 10247)]