20123009748

素因数分解:

$2^2\times 3^2\times {\mathrm{199}}^1\times {\mathrm{701}}^1\times {\mathrm{4007}}^1$

素因数の和:4917

約数の個数: 72

約数和(自身を含む): 51207811200

約数和(自身を除く): 31084801452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 199, 398, 597, 701, 796, 1194, 1402, 1791, 2103, 2388, 2804, 3582, 4007, 4206, 6309, 7164, 8014, 8412, 12021, 12618, 16028, 24042, 25236, 36063, 48084, 72126, 139499, 144252, 278998, 418497, 557996, 797393, 836994, 1255491, 1594786, 1673988, 2392179, 2510982, 2808907, 3189572, 4784358, 5021964, 5617814, 7176537, 8426721, 9568716, 11235628, 14353074, 16853442, 25280163, 28706148, 33706884, 50560326, 101120652, 558972493, 1117944986, 1676917479, 2235889972, 3353834958, 5030752437, 6707669916, 10061504874, 20123009748]

約数ペア:

[(1, 20123009748), (2, 10061504874), (3, 6707669916), (4, 5030752437), (6, 3353834958), (9, 2235889972), (12, 1676917479), (18, 1117944986), (36, 558972493), (199, 101120652), (398, 50560326), (597, 33706884), (701, 28706148), (796, 25280163), (1194, 16853442), (1402, 14353074), (1791, 11235628), (2103, 9568716), (2388, 8426721), (2804, 7176537), (3582, 5617814), (4007, 5021964), (4206, 4784358), (6309, 3189572), (7164, 2808907), (8014, 2510982), (8412, 2392179), (12021, 1673988), (12618, 1594786), (16028, 1255491), (24042, 836994), (25236, 797393), (36063, 557996), (48084, 418497), (72126, 278998), (139499, 144252)]