20215948144

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{823}}^1\times {\mathrm{3089}}^1$

素因数の和:3998

約数の個数: 80

約数和(自身を含む): 45464232960

約数和(自身を除く): 25248284816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 823, 994, 1136, 1646, 1988, 3089, 3292, 3976, 5761, 6178, 6584, 7952, 11522, 12356, 13168, 21623, 23044, 24712, 43246, 46088, 49424, 58433, 86492, 92176, 116866, 172984, 219319, 233732, 345968, 409031, 438638, 467464, 818062, 877276, 934928, 1535233, 1636124, 1754552, 2542247, 3070466, 3272248, 3509104, 5084494, 6140932, 6544496, 10168988, 12281864, 17795729, 20337976, 24563728, 35591458, 40675952, 71182916, 142365832, 180499537, 284731664, 360999074, 721998148, 1263496759, 1443996296, 2526993518, 2887992592, 5053987036, 10107974072, 20215948144]

約数ペア:

[(1, 20215948144), (2, 10107974072), (4, 5053987036), (7, 2887992592), (8, 2526993518), (14, 1443996296), (16, 1263496759), (28, 721998148), (56, 360999074), (71, 284731664), (112, 180499537), (142, 142365832), (284, 71182916), (497, 40675952), (568, 35591458), (823, 24563728), (994, 20337976), (1136, 17795729), (1646, 12281864), (1988, 10168988), (3089, 6544496), (3292, 6140932), (3976, 5084494), (5761, 3509104), (6178, 3272248), (6584, 3070466), (7952, 2542247), (11522, 1754552), (12356, 1636124), (13168, 1535233), (21623, 934928), (23044, 877276), (24712, 818062), (43246, 467464), (46088, 438638), (49424, 409031), (58433, 345968), (86492, 233732), (92176, 219319), (116866, 172984)]