20115405968

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1321}}^1\times {\mathrm{1721}}^1$

素因数の和:3136

約数の個数: 80

約数和(自身を含む): 45165442560

約数和(自身を除く): 25050036592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 1321, 1721, 2212, 2642, 3442, 4424, 5284, 6884, 8848, 9247, 10568, 12047, 13768, 18494, 21136, 24094, 27536, 36988, 48188, 73976, 96376, 104359, 135959, 147952, 192752, 208718, 271918, 417436, 543836, 730513, 834872, 951713, 1087672, 1461026, 1669744, 1903426, 2175344, 2273441, 2922052, 3806852, 4546882, 5844104, 7613704, 9093764, 11688208, 15227408, 15914087, 18187528, 31828174, 36375056, 63656348, 127312696, 179601839, 254625392, 359203678, 718407356, 1257212873, 1436814712, 2514425746, 2873629424, 5028851492, 10057702984, 20115405968]

約数ペア:

[(1, 20115405968), (2, 10057702984), (4, 5028851492), (7, 2873629424), (8, 2514425746), (14, 1436814712), (16, 1257212873), (28, 718407356), (56, 359203678), (79, 254625392), (112, 179601839), (158, 127312696), (316, 63656348), (553, 36375056), (632, 31828174), (1106, 18187528), (1264, 15914087), (1321, 15227408), (1721, 11688208), (2212, 9093764), (2642, 7613704), (3442, 5844104), (4424, 4546882), (5284, 3806852), (6884, 2922052), (8848, 2273441), (9247, 2175344), (10568, 1903426), (12047, 1669744), (13768, 1461026), (18494, 1087672), (21136, 951713), (24094, 834872), (27536, 730513), (36988, 543836), (48188, 417436), (73976, 271918), (96376, 208718), (104359, 192752), (135959, 147952)]