209109460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{379}}^1\times {\mathrm{563}}^1$

素因数の和:965

約数の個数: 72

約数和(自身を含む): 513082080

約数和(自身を除く): 303972620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 379, 490, 563, 758, 980, 1126, 1516, 1895, 2252, 2653, 2815, 3790, 3941, 5306, 5630, 7580, 7882, 10612, 11260, 13265, 15764, 18571, 19705, 26530, 27587, 37142, 39410, 53060, 55174, 74284, 78820, 92855, 110348, 137935, 185710, 213377, 275870, 371420, 426754, 551740, 853508, 1066885, 1493639, 2133770, 2987278, 4267540, 5974556, 7468195, 10455473, 14936390, 20910946, 29872780, 41821892, 52277365, 104554730, 209109460]

約数ペア:

[(1, 209109460), (2, 104554730), (4, 52277365), (5, 41821892), (7, 29872780), (10, 20910946), (14, 14936390), (20, 10455473), (28, 7468195), (35, 5974556), (49, 4267540), (70, 2987278), (98, 2133770), (140, 1493639), (196, 1066885), (245, 853508), (379, 551740), (490, 426754), (563, 371420), (758, 275870), (980, 213377), (1126, 185710), (1516, 137935), (1895, 110348), (2252, 92855), (2653, 78820), (2815, 74284), (3790, 55174), (3941, 53060), (5306, 39410), (5630, 37142), (7580, 27587), (7882, 26530), (10612, 19705), (11260, 18571), (13265, 15764)]