28078275

素因数分解:

$3^1\times 5^2\times {\mathrm{317}}^1\times {\mathrm{1181}}^1$

素因数の和:1511

約数の個数: 24

約数和(自身を含む): 46608624

約数和(自身を除く): 18530349

約数列:

[1, 3, 5, 15, 25, 75, 317, 951, 1181, 1585, 3543, 4755, 5905, 7925, 17715, 23775, 29525, 88575, 374377, 1123131, 1871885, 5615655, 9359425, 28078275]

約数ペア:

[(1, 28078275), (3, 9359425), (5, 5615655), (15, 1871885), (25, 1123131), (75, 374377), (317, 88575), (951, 29525), (1181, 23775), (1585, 17715), (3543, 7925), (4755, 5905)]