205121620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{84761}}^1$

素因数の和:84792

約数の個数: 36

約数和(自身を含む): 473480532

約数和(自身を除く): 268358912

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 84761, 169522, 339044, 423805, 847610, 932371, 1695220, 1864742, 3729484, 4661855, 9323710, 10256081, 18647420, 20512162, 41024324, 51280405, 102560810, 205121620]

約数ペア:

[(1, 205121620), (2, 102560810), (4, 51280405), (5, 41024324), (10, 20512162), (11, 18647420), (20, 10256081), (22, 9323710), (44, 4661855), (55, 3729484), (110, 1864742), (121, 1695220), (220, 932371), (242, 847610), (484, 423805), (605, 339044), (1210, 169522), (2420, 84761)]