20574260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{821}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 49714560

約数和(自身を除く): 29140300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 821, 895, 1253, 1642, 1790, 2506, 3284, 3580, 4105, 5012, 5747, 6265, 8210, 11494, 12530, 16420, 22988, 25060, 28735, 57470, 114940, 146959, 293918, 587836, 734795, 1028713, 1469590, 2057426, 2939180, 4114852, 5143565, 10287130, 20574260]

約数ペア:

[(1, 20574260), (2, 10287130), (4, 5143565), (5, 4114852), (7, 2939180), (10, 2057426), (14, 1469590), (20, 1028713), (28, 734795), (35, 587836), (70, 293918), (140, 146959), (179, 114940), (358, 57470), (716, 28735), (821, 25060), (895, 22988), (1253, 16420), (1642, 12530), (1790, 11494), (2506, 8210), (3284, 6265), (3580, 5747), (4105, 5012)]