20804932486

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{43543}}^1$

素因数の和:43645

約数の個数: 64

約数和(自身を含む): 37922992128

約数和(自身を除く): 17118059642

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 47, 94, 221, 299, 391, 442, 598, 611, 782, 799, 1081, 1222, 1598, 2162, 5083, 10166, 10387, 14053, 18377, 20774, 28106, 36754, 43543, 87086, 238901, 477802, 566059, 740231, 1001489, 1132118, 1480462, 2002978, 2046521, 4093042, 9623003, 13019357, 17025313, 19246006, 26038714, 26604773, 34050626, 34790857, 47069983, 53209546, 69581714, 94139966, 221329069, 442658138, 452281141, 611909779, 800189711, 904562282, 1223819558, 1600379422, 10402466243, 20804932486]

約数ペア:

[(1, 20804932486), (2, 10402466243), (13, 1600379422), (17, 1223819558), (23, 904562282), (26, 800189711), (34, 611909779), (46, 452281141), (47, 442658138), (94, 221329069), (221, 94139966), (299, 69581714), (391, 53209546), (442, 47069983), (598, 34790857), (611, 34050626), (782, 26604773), (799, 26038714), (1081, 19246006), (1222, 17025313), (1598, 13019357), (2162, 9623003), (5083, 4093042), (10166, 2046521), (10387, 2002978), (14053, 1480462), (18377, 1132118), (20774, 1001489), (28106, 740231), (36754, 566059), (43543, 477802), (87086, 238901)]