645825

素因数分解:

$3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 1091200

約数和(自身を除く): 445375

約数列:

[1, 3, 5, 15, 25, 75, 79, 109, 237, 327, 395, 545, 1185, 1635, 1975, 2725, 5925, 8175, 8611, 25833, 43055, 129165, 215275, 645825]

約数ペア:

[(1, 645825), (3, 215275), (5, 129165), (15, 43055), (25, 25833), (75, 8611), (79, 8175), (109, 5925), (237, 2725), (327, 1975), (395, 1635), (545, 1185)]