28032525

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4019}}^1$

素因数の和:4066

約数の個数: 36

約数和(自身を含む): 51841920

約数和(自身を除く): 23809395

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 225, 279, 465, 775, 1395, 2325, 4019, 6975, 12057, 20095, 36171, 60285, 100475, 124589, 180855, 301425, 373767, 622945, 904275, 1121301, 1868835, 3114725, 5606505, 9344175, 28032525]

約数ペア:

[(1, 28032525), (3, 9344175), (5, 5606505), (9, 3114725), (15, 1868835), (25, 1121301), (31, 904275), (45, 622945), (75, 373767), (93, 301425), (155, 180855), (225, 124589), (279, 100475), (465, 60285), (775, 36171), (1395, 20095), (2325, 12057), (4019, 6975)]