16655180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 36542016

約数和(自身を除く): 19886836

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 317, 355, 370, 634, 710, 740, 1268, 1420, 1585, 2627, 3170, 5254, 6340, 10508, 11729, 13135, 22507, 23458, 26270, 45014, 46916, 52540, 58645, 90028, 112535, 117290, 225070, 234580, 450140, 832759, 1665518, 3331036, 4163795, 8327590, 16655180]

約数ペア:

[(1, 16655180), (2, 8327590), (4, 4163795), (5, 3331036), (10, 1665518), (20, 832759), (37, 450140), (71, 234580), (74, 225070), (142, 117290), (148, 112535), (185, 90028), (284, 58645), (317, 52540), (355, 46916), (370, 45014), (634, 26270), (710, 23458), (740, 22507), (1268, 13135), (1420, 11729), (1585, 10508), (2627, 6340), (3170, 5254)]