81669315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 175472640

約数和(自身を除く): 93803325

約数列:

[1, 3, 5, 7, 13, 15, 19, 21, 35, 39, 47, 57, 65, 67, 91, 95, 105, 133, 141, 195, 201, 235, 247, 273, 285, 329, 335, 399, 455, 469, 611, 665, 705, 741, 871, 893, 987, 1005, 1235, 1273, 1365, 1407, 1645, 1729, 1833, 1995, 2345, 2613, 2679, 3055, 3149, 3705, 3819, 4277, 4355, 4465, 4935, 5187, 6097, 6251, 6365, 7035, 8645, 8911, 9165, 9447, 11609, 12831, 13065, 13395, 15745, 16549, 18291, 18753, 19095, 21385, 22043, 25935, 26733, 30485, 31255, 34827, 40937, 44555, 47235, 49647, 58045, 59831, 64155, 66129, 81263, 82745, 91455, 93765, 110215, 115843, 122811, 133665, 174135, 179493, 204685, 243789, 248235, 286559, 299155, 330645, 347529, 406315, 418817, 579215, 614055, 777803, 859677, 897465, 1218945, 1256451, 1432795, 1737645, 2094085, 2333409, 3889015, 4298385, 5444621, 6282255, 11667045, 16333863, 27223105, 81669315]

約数ペア:

[(1, 81669315), (3, 27223105), (5, 16333863), (7, 11667045), (13, 6282255), (15, 5444621), (19, 4298385), (21, 3889015), (35, 2333409), (39, 2094085), (47, 1737645), (57, 1432795), (65, 1256451), (67, 1218945), (91, 897465), (95, 859677), (105, 777803), (133, 614055), (141, 579215), (195, 418817), (201, 406315), (235, 347529), (247, 330645), (273, 299155), (285, 286559), (329, 248235), (335, 243789), (399, 204685), (455, 179493), (469, 174135), (611, 133665), (665, 122811), (705, 115843), (741, 110215), (871, 93765), (893, 91455), (987, 82745), (1005, 81263), (1235, 66129), (1273, 64155), (1365, 59831), (1407, 58045), (1645, 49647), (1729, 47235), (1833, 44555), (1995, 40937), (2345, 34827), (2613, 31255), (2679, 30485), (3055, 26733), (3149, 25935), (3705, 22043), (3819, 21385), (4277, 19095), (4355, 18753), (4465, 18291), (4935, 16549), (5187, 15745), (6097, 13395), (6251, 13065), (6365, 12831), (7035, 11609), (8645, 9447), (8911, 9165)]