20403672

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1163}}^1$

素因数の和:1232

約数の個数: 64

約数和(自身を含む): 55313280

約数和(自身を除く): 34909608

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 43, 51, 68, 86, 102, 129, 136, 172, 204, 258, 344, 408, 516, 731, 1032, 1163, 1462, 2193, 2326, 2924, 3489, 4386, 4652, 5848, 6978, 8772, 9304, 13956, 17544, 19771, 27912, 39542, 50009, 59313, 79084, 100018, 118626, 150027, 158168, 200036, 237252, 300054, 400072, 474504, 600108, 850153, 1200216, 1700306, 2550459, 3400612, 5100918, 6801224, 10201836, 20403672]

約数ペア:

[(1, 20403672), (2, 10201836), (3, 6801224), (4, 5100918), (6, 3400612), (8, 2550459), (12, 1700306), (17, 1200216), (24, 850153), (34, 600108), (43, 474504), (51, 400072), (68, 300054), (86, 237252), (102, 200036), (129, 158168), (136, 150027), (172, 118626), (204, 100018), (258, 79084), (344, 59313), (408, 50009), (516, 39542), (731, 27912), (1032, 19771), (1163, 17544), (1462, 13956), (2193, 9304), (2326, 8772), (2924, 6978), (3489, 5848), (4386, 4652)]