19985736

素因数分解:

$2^3\times 3^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 31623864

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 79, 83, 127, 158, 166, 237, 249, 254, 316, 332, 381, 474, 498, 508, 632, 664, 762, 948, 996, 1016, 1524, 1896, 1992, 3048, 6557, 10033, 10541, 13114, 19671, 20066, 21082, 26228, 30099, 31623, 39342, 40132, 42164, 52456, 60198, 63246, 78684, 80264, 84328, 120396, 126492, 157368, 240792, 252984, 832739, 1665478, 2498217, 3330956, 4996434, 6661912, 9992868, 19985736]

約数ペア:

[(1, 19985736), (2, 9992868), (3, 6661912), (4, 4996434), (6, 3330956), (8, 2498217), (12, 1665478), (24, 832739), (79, 252984), (83, 240792), (127, 157368), (158, 126492), (166, 120396), (237, 84328), (249, 80264), (254, 78684), (316, 63246), (332, 60198), (381, 52456), (474, 42164), (498, 40132), (508, 39342), (632, 31623), (664, 30099), (762, 26228), (948, 21082), (996, 20066), (1016, 19671), (1524, 13114), (1896, 10541), (1992, 10033), (3048, 6557)]