20796570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{743}}^1$

素因数の和:1067

約数の個数: 48

約数和(自身を含む): 54317952

約数和(自身を除く): 33521382

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 311, 622, 743, 933, 1486, 1555, 1866, 2229, 2799, 3110, 3715, 4458, 4665, 5598, 6687, 7430, 9330, 11145, 13374, 13995, 22290, 27990, 33435, 66870, 231073, 462146, 693219, 1155365, 1386438, 2079657, 2310730, 3466095, 4159314, 6932190, 10398285, 20796570]

約数ペア:

[(1, 20796570), (2, 10398285), (3, 6932190), (5, 4159314), (6, 3466095), (9, 2310730), (10, 2079657), (15, 1386438), (18, 1155365), (30, 693219), (45, 462146), (90, 231073), (311, 66870), (622, 33435), (743, 27990), (933, 22290), (1486, 13995), (1555, 13374), (1866, 11145), (2229, 9330), (2799, 7430), (3110, 6687), (3715, 5598), (4458, 4665)]