406875

素因数分解:

$3^1\times 5^4\times 7^1\times {\mathrm{31}}^1$

素因数の和:61

約数の個数: 40

約数和(自身を含む): 799744

約数和(自身を除く): 392869

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 75, 93, 105, 125, 155, 175, 217, 375, 465, 525, 625, 651, 775, 875, 1085, 1875, 2325, 2625, 3255, 3875, 4375, 5425, 11625, 13125, 16275, 19375, 27125, 58125, 81375, 135625, 406875]

約数ペア:

[(1, 406875), (3, 135625), (5, 81375), (7, 58125), (15, 27125), (21, 19375), (25, 16275), (31, 13125), (35, 11625), (75, 5425), (93, 4375), (105, 3875), (125, 3255), (155, 2625), (175, 2325), (217, 1875), (375, 1085), (465, 875), (525, 775), (625, 651)]