18340575

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 34831104

約数和(自身を除く): 16490529

約数列:

[1, 3, 5, 11, 15, 25, 33, 43, 47, 55, 75, 121, 129, 141, 165, 215, 235, 275, 363, 473, 517, 605, 645, 705, 825, 1075, 1175, 1419, 1551, 1815, 2021, 2365, 2585, 3025, 3225, 3525, 5203, 5687, 6063, 7095, 7755, 9075, 10105, 11825, 12925, 15609, 17061, 22231, 26015, 28435, 30315, 35475, 38775, 50525, 66693, 78045, 85305, 111155, 130075, 142175, 151575, 244541, 333465, 390225, 426525, 555775, 733623, 1222705, 1667325, 3668115, 6113525, 18340575]

約数ペア:

[(1, 18340575), (3, 6113525), (5, 3668115), (11, 1667325), (15, 1222705), (25, 733623), (33, 555775), (43, 426525), (47, 390225), (55, 333465), (75, 244541), (121, 151575), (129, 142175), (141, 130075), (165, 111155), (215, 85305), (235, 78045), (275, 66693), (363, 50525), (473, 38775), (517, 35475), (605, 30315), (645, 28435), (705, 26015), (825, 22231), (1075, 17061), (1175, 15609), (1419, 12925), (1551, 11825), (1815, 10105), (2021, 9075), (2365, 7755), (2585, 7095), (3025, 6063), (3225, 5687), (3525, 5203)]