13805000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 35426160

約数和(自身を除く): 21621160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 251, 275, 440, 500, 502, 550, 625, 1000, 1004, 1100, 1250, 1255, 1375, 2008, 2200, 2500, 2510, 2750, 2761, 5000, 5020, 5500, 5522, 6275, 6875, 10040, 11000, 11044, 12550, 13750, 13805, 22088, 25100, 27500, 27610, 31375, 50200, 55000, 55220, 62750, 69025, 110440, 125500, 138050, 156875, 251000, 276100, 313750, 345125, 552200, 627500, 690250, 1255000, 1380500, 1725625, 2761000, 3451250, 6902500, 13805000]

約数ペア:

[(1, 13805000), (2, 6902500), (4, 3451250), (5, 2761000), (8, 1725625), (10, 1380500), (11, 1255000), (20, 690250), (22, 627500), (25, 552200), (40, 345125), (44, 313750), (50, 276100), (55, 251000), (88, 156875), (100, 138050), (110, 125500), (125, 110440), (200, 69025), (220, 62750), (250, 55220), (251, 55000), (275, 50200), (440, 31375), (500, 27610), (502, 27500), (550, 25100), (625, 22088), (1000, 13805), (1004, 13750), (1100, 12550), (1250, 11044), (1255, 11000), (1375, 10040), (2008, 6875), (2200, 6275), (2500, 5522), (2510, 5500), (2750, 5020), (2761, 5000)]