26391380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 58800000

約数和(自身を除く): 32408620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 349, 380, 398, 698, 796, 995, 1396, 1745, 1990, 3490, 3781, 3980, 6631, 6980, 7562, 13262, 15124, 18905, 26524, 33155, 37810, 66310, 69451, 75620, 132620, 138902, 277804, 347255, 694510, 1319569, 1389020, 2639138, 5278276, 6597845, 13195690, 26391380]

約数ペア:

[(1, 26391380), (2, 13195690), (4, 6597845), (5, 5278276), (10, 2639138), (19, 1389020), (20, 1319569), (38, 694510), (76, 347255), (95, 277804), (190, 138902), (199, 132620), (349, 75620), (380, 69451), (398, 66310), (698, 37810), (796, 33155), (995, 26524), (1396, 18905), (1745, 15124), (1990, 13262), (3490, 7562), (3781, 6980), (3980, 6631)]