51649780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 140192640

約数和(自身を除く): 88542860

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 37, 52, 59, 65, 70, 74, 91, 118, 130, 140, 148, 169, 182, 185, 236, 259, 260, 295, 338, 364, 370, 413, 455, 481, 518, 590, 676, 740, 767, 826, 845, 910, 962, 1036, 1180, 1183, 1295, 1534, 1652, 1690, 1820, 1924, 2065, 2183, 2366, 2405, 2590, 3068, 3367, 3380, 3835, 4130, 4366, 4732, 4810, 5180, 5369, 5915, 6253, 6734, 7670, 8260, 8732, 9620, 9971, 10738, 10915, 11830, 12506, 13468, 15281, 15340, 16835, 19942, 21476, 21830, 23660, 25012, 26845, 28379, 30562, 31265, 33670, 39884, 43660, 43771, 49855, 53690, 56758, 61124, 62530, 67340, 69797, 76405, 87542, 99710, 107380, 113516, 125060, 139594, 141895, 152810, 175084, 198653, 199420, 218855, 279188, 283790, 305620, 348985, 368927, 397306, 437710, 567580, 697970, 737854, 794612, 875420, 993265, 1395940, 1475708, 1844635, 1986530, 2582489, 3689270, 3973060, 5164978, 7378540, 10329956, 12912445, 25824890, 51649780]

約数ペア:

[(1, 51649780), (2, 25824890), (4, 12912445), (5, 10329956), (7, 7378540), (10, 5164978), (13, 3973060), (14, 3689270), (20, 2582489), (26, 1986530), (28, 1844635), (35, 1475708), (37, 1395940), (52, 993265), (59, 875420), (65, 794612), (70, 737854), (74, 697970), (91, 567580), (118, 437710), (130, 397306), (140, 368927), (148, 348985), (169, 305620), (182, 283790), (185, 279188), (236, 218855), (259, 199420), (260, 198653), (295, 175084), (338, 152810), (364, 141895), (370, 139594), (413, 125060), (455, 113516), (481, 107380), (518, 99710), (590, 87542), (676, 76405), (740, 69797), (767, 67340), (826, 62530), (845, 61124), (910, 56758), (962, 53690), (1036, 49855), (1180, 43771), (1183, 43660), (1295, 39884), (1534, 33670), (1652, 31265), (1690, 30562), (1820, 28379), (1924, 26845), (2065, 25012), (2183, 23660), (2366, 21830), (2405, 21476), (2590, 19942), (3068, 16835), (3367, 15340), (3380, 15281), (3835, 13468), (4130, 12506), (4366, 11830), (4732, 10915), (4810, 10738), (5180, 9971), (5369, 9620), (5915, 8732), (6253, 8260), (6734, 7670)]