20809713020

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1\times {\mathrm{34807}}^1$

素因数の和:35162

約数の個数: 48

約数和(自身を含む): 44208944640

約数和(自身を除く): 23399231620

約数列:

[1, 2, 4, 5, 10, 20, 167, 179, 334, 358, 668, 716, 835, 895, 1670, 1790, 3340, 3580, 29893, 34807, 59786, 69614, 119572, 139228, 149465, 174035, 298930, 348070, 597860, 696140, 5812769, 6230453, 11625538, 12460906, 23251076, 24921812, 29063845, 31152265, 58127690, 62304530, 116255380, 124609060, 1040485651, 2080971302, 4161942604, 5202428255, 10404856510, 20809713020]

約数ペア:

[(1, 20809713020), (2, 10404856510), (4, 5202428255), (5, 4161942604), (10, 2080971302), (20, 1040485651), (167, 124609060), (179, 116255380), (334, 62304530), (358, 58127690), (668, 31152265), (716, 29063845), (835, 24921812), (895, 23251076), (1670, 12460906), (1790, 11625538), (3340, 6230453), (3580, 5812769), (29893, 696140), (34807, 597860), (59786, 348070), (69614, 298930), (119572, 174035), (139228, 149465)]