20498787968

素因数分解:

$2^7\times {\mathrm{223}}^1\times {\mathrm{337}}^1\times {\mathrm{2131}}^1$

素因数の和:2705

約数の個数: 64

約数和(自身を含む): 41161585920

約数和(自身を除く): 20662797952

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 223, 337, 446, 674, 892, 1348, 1784, 2131, 2696, 3568, 4262, 5392, 7136, 8524, 10784, 14272, 17048, 21568, 28544, 34096, 43136, 68192, 75151, 136384, 150302, 272768, 300604, 475213, 601208, 718147, 950426, 1202416, 1436294, 1900852, 2404832, 2872588, 3801704, 4809664, 5745176, 7603408, 9619328, 11490352, 15206816, 22980704, 30413632, 45961408, 60827264, 91922816, 160146781, 320293562, 640587124, 1281174248, 2562348496, 5124696992, 10249393984, 20498787968]

約数ペア:

[(1, 20498787968), (2, 10249393984), (4, 5124696992), (8, 2562348496), (16, 1281174248), (32, 640587124), (64, 320293562), (128, 160146781), (223, 91922816), (337, 60827264), (446, 45961408), (674, 30413632), (892, 22980704), (1348, 15206816), (1784, 11490352), (2131, 9619328), (2696, 7603408), (3568, 5745176), (4262, 4809664), (5392, 3801704), (7136, 2872588), (8524, 2404832), (10784, 1900852), (14272, 1436294), (17048, 1202416), (21568, 950426), (28544, 718147), (34096, 601208), (43136, 475213), (68192, 300604), (75151, 272768), (136384, 150302)]