13293880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 31363200

約数和(自身を除く): 18069320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 59, 86, 118, 131, 172, 215, 236, 262, 295, 344, 430, 472, 524, 590, 655, 860, 1048, 1180, 1310, 1720, 2360, 2537, 2620, 5074, 5240, 5633, 7729, 10148, 11266, 12685, 15458, 20296, 22532, 25370, 28165, 30916, 38645, 45064, 50740, 56330, 61832, 77290, 101480, 112660, 154580, 225320, 309160, 332347, 664694, 1329388, 1661735, 2658776, 3323470, 6646940, 13293880]

約数ペア:

[(1, 13293880), (2, 6646940), (4, 3323470), (5, 2658776), (8, 1661735), (10, 1329388), (20, 664694), (40, 332347), (43, 309160), (59, 225320), (86, 154580), (118, 112660), (131, 101480), (172, 77290), (215, 61832), (236, 56330), (262, 50740), (295, 45064), (344, 38645), (430, 30916), (472, 28165), (524, 25370), (590, 22532), (655, 20296), (860, 15458), (1048, 12685), (1180, 11266), (1310, 10148), (1720, 7729), (2360, 5633), (2537, 5240), (2620, 5074)]