40805475

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 69995520

約数和(自身を除く): 29190045

約数列:

[1, 3, 5, 15, 25, 71, 75, 79, 97, 213, 237, 291, 355, 395, 485, 1065, 1185, 1455, 1775, 1975, 2425, 5325, 5609, 5925, 6887, 7275, 7663, 16827, 20661, 22989, 28045, 34435, 38315, 84135, 103305, 114945, 140225, 172175, 191575, 420675, 516525, 544073, 574725, 1632219, 2720365, 8161095, 13601825, 40805475]

約数ペア:

[(1, 40805475), (3, 13601825), (5, 8161095), (15, 2720365), (25, 1632219), (71, 574725), (75, 544073), (79, 516525), (97, 420675), (213, 191575), (237, 172175), (291, 140225), (355, 114945), (395, 103305), (485, 84135), (1065, 38315), (1185, 34435), (1455, 28045), (1775, 22989), (1975, 20661), (2425, 16827), (5325, 7663), (5609, 7275), (5925, 6887)]