209599280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{238181}}^1$

素因数の和:238205

約数の個数: 40

約数和(自身を含む): 531622224

約数和(自身を除く): 322022944

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 238181, 476362, 952724, 1190905, 1905448, 2381810, 2619991, 3810896, 4763620, 5239982, 9527240, 10479964, 13099955, 19054480, 20959928, 26199910, 41919856, 52399820, 104799640, 209599280]

約数ペア:

[(1, 209599280), (2, 104799640), (4, 52399820), (5, 41919856), (8, 26199910), (10, 20959928), (11, 19054480), (16, 13099955), (20, 10479964), (22, 9527240), (40, 5239982), (44, 4763620), (55, 3810896), (80, 2619991), (88, 2381810), (110, 1905448), (176, 1190905), (220, 952724), (440, 476362), (880, 238181)]