28307775

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{101}}^2$

素因数の和:252

約数の個数: 36

約数和(自身を含む): 48547736

約数和(自身を除く): 20239961

約数列:

[1, 3, 5, 15, 25, 37, 75, 101, 111, 185, 303, 505, 555, 925, 1515, 2525, 2775, 3737, 7575, 10201, 11211, 18685, 30603, 51005, 56055, 93425, 153015, 255025, 280275, 377437, 765075, 1132311, 1887185, 5661555, 9435925, 28307775]

約数ペア:

[(1, 28307775), (3, 9435925), (5, 5661555), (15, 1887185), (25, 1132311), (37, 765075), (75, 377437), (101, 280275), (111, 255025), (185, 153015), (303, 93425), (505, 56055), (555, 51005), (925, 30603), (1515, 18685), (2525, 11211), (2775, 10201), (3737, 7575)]