1224375

素因数分解:

$3^1\times 5^4\times {\mathrm{653}}^1$

素因数の和:676

約数の個数: 20

約数和(自身を含む): 2043096

約数和(自身を除く): 818721

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 653, 1875, 1959, 3265, 9795, 16325, 48975, 81625, 244875, 408125, 1224375]

約数ペア:

[(1, 1224375), (3, 408125), (5, 244875), (15, 81625), (25, 48975), (75, 16325), (125, 9795), (375, 3265), (625, 1959), (653, 1875)]