18120804516

素因数分解:

$2^2\times 3^5\times {\mathrm{53}}^1\times {\mathrm{351751}}^1$

素因数の和:351823

約数の個数: 72

約数和(自身を含む): 48398261184

約数和(自身を除く): 30277456668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 53, 54, 81, 106, 108, 159, 162, 212, 243, 318, 324, 477, 486, 636, 954, 972, 1431, 1908, 2862, 4293, 5724, 8586, 12879, 17172, 25758, 51516, 351751, 703502, 1055253, 1407004, 2110506, 3165759, 4221012, 6331518, 9497277, 12663036, 18642803, 18994554, 28491831, 37285606, 37989108, 55928409, 56983662, 74571212, 85475493, 111856818, 113967324, 167785227, 170950986, 223713636, 335570454, 341901972, 503355681, 671140908, 1006711362, 1510067043, 2013422724, 3020134086, 4530201129, 6040268172, 9060402258, 18120804516]

約数ペア:

[(1, 18120804516), (2, 9060402258), (3, 6040268172), (4, 4530201129), (6, 3020134086), (9, 2013422724), (12, 1510067043), (18, 1006711362), (27, 671140908), (36, 503355681), (53, 341901972), (54, 335570454), (81, 223713636), (106, 170950986), (108, 167785227), (159, 113967324), (162, 111856818), (212, 85475493), (243, 74571212), (318, 56983662), (324, 55928409), (477, 37989108), (486, 37285606), (636, 28491831), (954, 18994554), (972, 18642803), (1431, 12663036), (1908, 9497277), (2862, 6331518), (4293, 4221012), (5724, 3165759), (8586, 2110506), (12879, 1407004), (17172, 1055253), (25758, 703502), (51516, 351751)]