205654840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97007}}^1$

素因数の和:97071

約数の個数: 32

約数和(自身を含む): 471458880

約数和(自身を除く): 265804040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 97007, 194014, 388028, 485035, 776056, 970070, 1940140, 3880280, 5141371, 10282742, 20565484, 25706855, 41130968, 51413710, 102827420, 205654840]

約数ペア:

[(1, 205654840), (2, 102827420), (4, 51413710), (5, 41130968), (8, 25706855), (10, 20565484), (20, 10282742), (40, 5141371), (53, 3880280), (106, 1940140), (212, 970070), (265, 776056), (424, 485035), (530, 388028), (1060, 194014), (2120, 97007)]