20848620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26729}}^1$

素因数の和:26754

約数の個数: 48

約数和(自身を含む): 62868960

約数和(自身を除く): 42020340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26729, 53458, 80187, 106916, 133645, 160374, 267290, 320748, 347477, 400935, 534580, 694954, 801870, 1042431, 1389908, 1603740, 1737385, 2084862, 3474770, 4169724, 5212155, 6949540, 10424310, 20848620]

約数ペア:

[(1, 20848620), (2, 10424310), (3, 6949540), (4, 5212155), (5, 4169724), (6, 3474770), (10, 2084862), (12, 1737385), (13, 1603740), (15, 1389908), (20, 1042431), (26, 801870), (30, 694954), (39, 534580), (52, 400935), (60, 347477), (65, 320748), (78, 267290), (130, 160374), (156, 133645), (195, 106916), (260, 80187), (390, 53458), (780, 26729)]