20291206312

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1\times {\mathrm{2521}}^1$

素因数の和:3134

約数の個数: 64

約数和(自身を含む): 41304004560

約数和(自身を除く): 21012798248

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 193, 386, 401, 772, 802, 1544, 1604, 2509, 2521, 3208, 5018, 5042, 5213, 10036, 10084, 10426, 20072, 20168, 20852, 32773, 41704, 65546, 77393, 131092, 154786, 262184, 309572, 486553, 619144, 973106, 1006109, 1010921, 1946212, 2012218, 2021842, 3892424, 4024436, 4043684, 6325189, 8048872, 8087368, 12650378, 13141973, 25300756, 26283946, 50601512, 52567892, 105135784, 195107753, 390215506, 780431012, 1560862024, 2536400789, 5072801578, 10145603156, 20291206312]

約数ペア:

[(1, 20291206312), (2, 10145603156), (4, 5072801578), (8, 2536400789), (13, 1560862024), (26, 780431012), (52, 390215506), (104, 195107753), (193, 105135784), (386, 52567892), (401, 50601512), (772, 26283946), (802, 25300756), (1544, 13141973), (1604, 12650378), (2509, 8087368), (2521, 8048872), (3208, 6325189), (5018, 4043684), (5042, 4024436), (5213, 3892424), (10036, 2021842), (10084, 2012218), (10426, 1946212), (20072, 1010921), (20168, 1006109), (20852, 973106), (32773, 619144), (41704, 486553), (65546, 309572), (77393, 262184), (131092, 154786)]