81210206

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{1511}}^1$

素因数の和:1880

約数の個数: 32

約数和(自身を含む): 152409600

約数和(自身を除く): 71199394

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 349, 698, 1511, 2443, 3022, 3839, 4886, 7678, 10577, 16621, 21154, 26873, 33242, 53746, 116347, 232694, 527339, 1054678, 3691373, 5800729, 7382746, 11601458, 40605103, 81210206]

約数ペア:

[(1, 81210206), (2, 40605103), (7, 11601458), (11, 7382746), (14, 5800729), (22, 3691373), (77, 1054678), (154, 527339), (349, 232694), (698, 116347), (1511, 53746), (2443, 33242), (3022, 26873), (3839, 21154), (4886, 16621), (7678, 10577)]