20138521585

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{727}}^1\times {\mathrm{2647}}^1$

素因数の和:3422

約数の個数: 64

約数和(自身を含む): 31090655232

約数和(自身を除く): 10952133647

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 727, 805, 1495, 2093, 2647, 3635, 5089, 9451, 10465, 13235, 16721, 18529, 25445, 34411, 47255, 60881, 66157, 83605, 92645, 117047, 172055, 217373, 240877, 304405, 330785, 426167, 585235, 791453, 1086865, 1204385, 1521611, 1924369, 2130835, 3957265, 5540171, 7608055, 9621845, 13470583, 25016797, 27700855, 44260487, 67352915, 125083985, 175117579, 221302435, 309823409, 575386331, 875587895, 1549117045, 2876931655, 4027704317, 20138521585]

約数ペア:

[(1, 20138521585), (5, 4027704317), (7, 2876931655), (13, 1549117045), (23, 875587895), (35, 575386331), (65, 309823409), (91, 221302435), (115, 175117579), (161, 125083985), (299, 67352915), (455, 44260487), (727, 27700855), (805, 25016797), (1495, 13470583), (2093, 9621845), (2647, 7608055), (3635, 5540171), (5089, 3957265), (9451, 2130835), (10465, 1924369), (13235, 1521611), (16721, 1204385), (18529, 1086865), (25445, 791453), (34411, 585235), (47255, 426167), (60881, 330785), (66157, 304405), (83605, 240877), (92645, 217373), (117047, 172055)]