26839280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 68058144

約数和(自身を除く): 41218864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 131, 197, 208, 260, 262, 394, 520, 524, 655, 788, 985, 1040, 1048, 1310, 1576, 1703, 1970, 2096, 2561, 2620, 3152, 3406, 3940, 5122, 5240, 6812, 7880, 8515, 10244, 10480, 12805, 13624, 15760, 17030, 20488, 25610, 25807, 27248, 34060, 40976, 51220, 51614, 68120, 102440, 103228, 129035, 136240, 204880, 206456, 258070, 335491, 412912, 516140, 670982, 1032280, 1341964, 1677455, 2064560, 2683928, 3354910, 5367856, 6709820, 13419640, 26839280]

約数ペア:

[(1, 26839280), (2, 13419640), (4, 6709820), (5, 5367856), (8, 3354910), (10, 2683928), (13, 2064560), (16, 1677455), (20, 1341964), (26, 1032280), (40, 670982), (52, 516140), (65, 412912), (80, 335491), (104, 258070), (130, 206456), (131, 204880), (197, 136240), (208, 129035), (260, 103228), (262, 102440), (394, 68120), (520, 51614), (524, 51220), (655, 40976), (788, 34060), (985, 27248), (1040, 25807), (1048, 25610), (1310, 20488), (1576, 17030), (1703, 15760), (1970, 13624), (2096, 12805), (2561, 10480), (2620, 10244), (3152, 8515), (3406, 7880), (3940, 6812), (5122, 5240)]