15721493740

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{409}}^1\times {\mathrm{5507}}^1$

素因数の和:6274

約数の個数: 48

約数和(自身を含む): 33196716000

約数和(自身を除く): 17475222260

約数列:

[1, 2, 4, 5, 10, 20, 349, 409, 698, 818, 1396, 1636, 1745, 2045, 3490, 4090, 5507, 6980, 8180, 11014, 22028, 27535, 55070, 110140, 142741, 285482, 570964, 713705, 1427410, 1921943, 2252363, 2854820, 3843886, 4504726, 7687772, 9009452, 9609715, 11261815, 19219430, 22523630, 38438860, 45047260, 786074687, 1572149374, 3144298748, 3930373435, 7860746870, 15721493740]

約数ペア:

[(1, 15721493740), (2, 7860746870), (4, 3930373435), (5, 3144298748), (10, 1572149374), (20, 786074687), (349, 45047260), (409, 38438860), (698, 22523630), (818, 19219430), (1396, 11261815), (1636, 9609715), (1745, 9009452), (2045, 7687772), (3490, 4504726), (4090, 3843886), (5507, 2854820), (6980, 2252363), (8180, 1921943), (11014, 1427410), (22028, 713705), (27535, 570964), (55070, 285482), (110140, 142741)]