25227280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 63995904

約数和(自身を除く): 38768624

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 127, 130, 191, 208, 254, 260, 382, 508, 520, 635, 764, 955, 1016, 1040, 1270, 1528, 1651, 1910, 2032, 2483, 2540, 3056, 3302, 3820, 4966, 5080, 6604, 7640, 8255, 9932, 10160, 12415, 13208, 15280, 16510, 19864, 24257, 24830, 26416, 33020, 39728, 48514, 49660, 66040, 97028, 99320, 121285, 132080, 194056, 198640, 242570, 315341, 388112, 485140, 630682, 970280, 1261364, 1576705, 1940560, 2522728, 3153410, 5045456, 6306820, 12613640, 25227280]

約数ペア:

[(1, 25227280), (2, 12613640), (4, 6306820), (5, 5045456), (8, 3153410), (10, 2522728), (13, 1940560), (16, 1576705), (20, 1261364), (26, 970280), (40, 630682), (52, 485140), (65, 388112), (80, 315341), (104, 242570), (127, 198640), (130, 194056), (191, 132080), (208, 121285), (254, 99320), (260, 97028), (382, 66040), (508, 49660), (520, 48514), (635, 39728), (764, 33020), (955, 26416), (1016, 24830), (1040, 24257), (1270, 19864), (1528, 16510), (1651, 15280), (1910, 13208), (2032, 12415), (2483, 10160), (2540, 9932), (3056, 8255), (3302, 7640), (3820, 6604), (4966, 5080)]