13535980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 30240000

約数和(自身を除く): 16704020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 199, 358, 380, 398, 716, 796, 895, 995, 1790, 1990, 3401, 3580, 3781, 3980, 6802, 7562, 13604, 15124, 17005, 18905, 34010, 35621, 37810, 68020, 71242, 75620, 142484, 178105, 356210, 676799, 712420, 1353598, 2707196, 3383995, 6767990, 13535980]

約数ペア:

[(1, 13535980), (2, 6767990), (4, 3383995), (5, 2707196), (10, 1353598), (19, 712420), (20, 676799), (38, 356210), (76, 178105), (95, 142484), (179, 75620), (190, 71242), (199, 68020), (358, 37810), (380, 35621), (398, 34010), (716, 18905), (796, 17005), (895, 15124), (995, 13604), (1790, 7562), (1990, 6802), (3401, 3980), (3580, 3781)]