51424880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 129929184

約数和(自身を除く): 78504304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 197, 208, 251, 260, 394, 502, 520, 788, 985, 1004, 1040, 1255, 1576, 1970, 2008, 2510, 2561, 3152, 3263, 3940, 4016, 5020, 5122, 6526, 7880, 10040, 10244, 12805, 13052, 15760, 16315, 20080, 20488, 25610, 26104, 32630, 40976, 49447, 51220, 52208, 65260, 98894, 102440, 130520, 197788, 204880, 247235, 261040, 395576, 494470, 642811, 791152, 988940, 1285622, 1977880, 2571244, 3214055, 3955760, 5142488, 6428110, 10284976, 12856220, 25712440, 51424880]

約数ペア:

[(1, 51424880), (2, 25712440), (4, 12856220), (5, 10284976), (8, 6428110), (10, 5142488), (13, 3955760), (16, 3214055), (20, 2571244), (26, 1977880), (40, 1285622), (52, 988940), (65, 791152), (80, 642811), (104, 494470), (130, 395576), (197, 261040), (208, 247235), (251, 204880), (260, 197788), (394, 130520), (502, 102440), (520, 98894), (788, 65260), (985, 52208), (1004, 51220), (1040, 49447), (1255, 40976), (1576, 32630), (1970, 26104), (2008, 25610), (2510, 20488), (2561, 20080), (3152, 16315), (3263, 15760), (3940, 13052), (4016, 12805), (5020, 10244), (5122, 10040), (6526, 7880)]