20728330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10211}}^1$

素因数の和:10254

約数の個数: 32

約数和(自身を含む): 44115840

約数和(自身を除く): 23387510

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10211, 20422, 51055, 71477, 102110, 142954, 296119, 357385, 592238, 714770, 1480595, 2072833, 2961190, 4145666, 10364165, 20728330]

約数ペア:

[(1, 20728330), (2, 10364165), (5, 4145666), (7, 2961190), (10, 2072833), (14, 1480595), (29, 714770), (35, 592238), (58, 357385), (70, 296119), (145, 142954), (203, 102110), (290, 71477), (406, 51055), (1015, 20422), (2030, 10211)]