19940625

素因数分解:

$3^2\times 5^5\times {\mathrm{709}}^1$

素因数の和:740

約数の個数: 36

約数和(自身を含む): 36052380

約数和(自身を除く): 16111755

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 709, 1125, 1875, 2127, 3125, 3545, 5625, 6381, 9375, 10635, 17725, 28125, 31905, 53175, 88625, 159525, 265875, 443125, 797625, 1329375, 2215625, 3988125, 6646875, 19940625]

約数ペア:

[(1, 19940625), (3, 6646875), (5, 3988125), (9, 2215625), (15, 1329375), (25, 797625), (45, 443125), (75, 265875), (125, 159525), (225, 88625), (375, 53175), (625, 31905), (709, 28125), (1125, 17725), (1875, 10635), (2127, 9375), (3125, 6381), (3545, 5625)]