81538170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{388277}}^1$

素因数の和:388294

約数の個数: 32

約数和(自身を含む): 223648128

約数和(自身を除く): 142109958

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 388277, 776554, 1164831, 1941385, 2329662, 2717939, 3882770, 5435878, 5824155, 8153817, 11648310, 13589695, 16307634, 27179390, 40769085, 81538170]

約数ペア:

[(1, 81538170), (2, 40769085), (3, 27179390), (5, 16307634), (6, 13589695), (7, 11648310), (10, 8153817), (14, 5824155), (15, 5435878), (21, 3882770), (30, 2717939), (35, 2329662), (42, 1941385), (70, 1164831), (105, 776554), (210, 388277)]