18455804980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{408857}}^1$

素因数の和:408964

約数の個数: 48

約数和(自身を含む): 40457316816

約数和(自身を除く): 22001511836

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 370, 610, 740, 1220, 2257, 4514, 9028, 11285, 22570, 45140, 408857, 817714, 1635428, 2044285, 4088570, 8177140, 15127709, 24940277, 30255418, 49880554, 60510836, 75638545, 99761108, 124701385, 151277090, 249402770, 302554180, 498805540, 922790249, 1845580498, 3691160996, 4613951245, 9227902490, 18455804980]

約数ペア:

[(1, 18455804980), (2, 9227902490), (4, 4613951245), (5, 3691160996), (10, 1845580498), (20, 922790249), (37, 498805540), (61, 302554180), (74, 249402770), (122, 151277090), (148, 124701385), (185, 99761108), (244, 75638545), (305, 60510836), (370, 49880554), (610, 30255418), (740, 24940277), (1220, 15127709), (2257, 8177140), (4514, 4088570), (9028, 2044285), (11285, 1635428), (22570, 817714), (45140, 408857)]