778933980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{393401}}^1$

素因数の和:393427

約数の個数: 72

約数和(自身を含む): 2577569904

約数和(自身を除く): 1798635924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 393401, 786802, 1180203, 1573604, 1967005, 2360406, 3540609, 3934010, 4327411, 4720812, 5901015, 7081218, 7868020, 8654822, 11802030, 12982233, 14162436, 17309644, 17703045, 21637055, 23604060, 25964466, 35406090, 38946699, 43274110, 51928932, 64911165, 70812180, 77893398, 86548220, 129822330, 155786796, 194733495, 259644660, 389466990, 778933980]

約数ペア:

[(1, 778933980), (2, 389466990), (3, 259644660), (4, 194733495), (5, 155786796), (6, 129822330), (9, 86548220), (10, 77893398), (11, 70812180), (12, 64911165), (15, 51928932), (18, 43274110), (20, 38946699), (22, 35406090), (30, 25964466), (33, 23604060), (36, 21637055), (44, 17703045), (45, 17309644), (55, 14162436), (60, 12982233), (66, 11802030), (90, 8654822), (99, 7868020), (110, 7081218), (132, 5901015), (165, 4720812), (180, 4327411), (198, 3934010), (220, 3540609), (330, 2360406), (396, 1967005), (495, 1573604), (660, 1180203), (990, 786802), (1980, 393401)]