257490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{2861}}^1$

素因数の和:2874

約数の個数: 24

約数和(自身を含む): 669708

約数和(自身を除く): 412218

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 2861, 5722, 8583, 14305, 17166, 25749, 28610, 42915, 51498, 85830, 128745, 257490]

約数ペア:

[(1, 257490), (2, 128745), (3, 85830), (5, 51498), (6, 42915), (9, 28610), (10, 25749), (15, 17166), (18, 14305), (30, 8583), (45, 5722), (90, 2861)]