28867275

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{7547}}^1$

素因数の和:7580

約数の個数: 36

約数和(自身を含む): 54753192

約数和(自身を除く): 25885917

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 7547, 22641, 37735, 67923, 113205, 128299, 188675, 339615, 384897, 566025, 641495, 1154691, 1698075, 1924485, 3207475, 5773455, 9622425, 28867275]

約数ペア:

[(1, 28867275), (3, 9622425), (5, 5773455), (9, 3207475), (15, 1924485), (17, 1698075), (25, 1154691), (45, 641495), (51, 566025), (75, 384897), (85, 339615), (153, 188675), (225, 128299), (255, 113205), (425, 67923), (765, 37735), (1275, 22641), (3825, 7547)]