31521825

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 63745920

約数和(自身を除く): 32224095

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 41, 45, 51, 67, 75, 85, 123, 135, 153, 201, 205, 225, 255, 335, 369, 425, 459, 603, 615, 675, 697, 765, 1005, 1025, 1107, 1139, 1275, 1675, 1809, 1845, 2091, 2295, 2747, 3015, 3075, 3417, 3485, 3825, 5025, 5535, 5695, 6273, 8241, 9045, 9225, 10251, 10455, 11475, 13735, 15075, 17085, 17425, 18819, 24723, 27675, 28475, 30753, 31365, 41205, 45225, 46699, 51255, 52275, 68675, 74169, 85425, 94095, 123615, 140097, 153765, 156825, 206025, 233495, 256275, 370845, 420291, 470475, 618075, 700485, 768825, 1167475, 1260873, 1854225, 2101455, 3502425, 6304365, 10507275, 31521825]

約数ペア:

[(1, 31521825), (3, 10507275), (5, 6304365), (9, 3502425), (15, 2101455), (17, 1854225), (25, 1260873), (27, 1167475), (41, 768825), (45, 700485), (51, 618075), (67, 470475), (75, 420291), (85, 370845), (123, 256275), (135, 233495), (153, 206025), (201, 156825), (205, 153765), (225, 140097), (255, 123615), (335, 94095), (369, 85425), (425, 74169), (459, 68675), (603, 52275), (615, 51255), (675, 46699), (697, 45225), (765, 41205), (1005, 31365), (1025, 30753), (1107, 28475), (1139, 27675), (1275, 24723), (1675, 18819), (1809, 17425), (1845, 17085), (2091, 15075), (2295, 13735), (2747, 11475), (3015, 10455), (3075, 10251), (3417, 9225), (3485, 9045), (3825, 8241), (5025, 6273), (5535, 5695)]