28788525

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{5563}}^1$

素因数の和:5602

約数の個数: 36

約数和(自身を含む): 53815008

約数和(自身を除く): 25026483

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 5175, 5563, 16689, 27815, 50067, 83445, 127949, 139075, 250335, 383847, 417225, 639745, 1151541, 1251675, 1919235, 3198725, 5757705, 9596175, 28788525]

約数ペア:

[(1, 28788525), (3, 9596175), (5, 5757705), (9, 3198725), (15, 1919235), (23, 1251675), (25, 1151541), (45, 639745), (69, 417225), (75, 383847), (115, 250335), (207, 139075), (225, 127949), (345, 83445), (575, 50067), (1035, 27815), (1725, 16689), (5175, 5563)]