81355620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{569}}^1\times {\mathrm{2383}}^1$

素因数の和:2964

約数の個数: 48

約数和(自身を含む): 228291840

約数和(自身を除く): 146936220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 569, 1138, 1707, 2276, 2383, 2845, 3414, 4766, 5690, 6828, 7149, 8535, 9532, 11380, 11915, 14298, 17070, 23830, 28596, 34140, 35745, 47660, 71490, 142980, 1355927, 2711854, 4067781, 5423708, 6779635, 8135562, 13559270, 16271124, 20338905, 27118540, 40677810, 81355620]

約数ペア:

[(1, 81355620), (2, 40677810), (3, 27118540), (4, 20338905), (5, 16271124), (6, 13559270), (10, 8135562), (12, 6779635), (15, 5423708), (20, 4067781), (30, 2711854), (60, 1355927), (569, 142980), (1138, 71490), (1707, 47660), (2276, 35745), (2383, 34140), (2845, 28596), (3414, 23830), (4766, 17070), (5690, 14298), (6828, 11915), (7149, 11380), (8535, 9532)]