20090106

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:201

約数の個数: 80

約数和(自身を含む): 48612960

約数和(自身を除く): 28522854

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 61, 81, 107, 114, 122, 162, 171, 183, 214, 321, 342, 366, 513, 549, 642, 963, 1026, 1098, 1159, 1539, 1647, 1926, 2033, 2318, 2889, 3078, 3294, 3477, 4066, 4941, 5778, 6099, 6527, 6954, 8667, 9882, 10431, 12198, 13054, 17334, 18297, 19581, 20862, 31293, 36594, 39162, 54891, 58743, 62586, 93879, 109782, 117486, 124013, 164673, 176229, 187758, 248026, 329346, 352458, 372039, 528687, 744078, 1057374, 1116117, 2232234, 3348351, 6696702, 10045053, 20090106]

約数ペア:

[(1, 20090106), (2, 10045053), (3, 6696702), (6, 3348351), (9, 2232234), (18, 1116117), (19, 1057374), (27, 744078), (38, 528687), (54, 372039), (57, 352458), (61, 329346), (81, 248026), (107, 187758), (114, 176229), (122, 164673), (162, 124013), (171, 117486), (183, 109782), (214, 93879), (321, 62586), (342, 58743), (366, 54891), (513, 39162), (549, 36594), (642, 31293), (963, 20862), (1026, 19581), (1098, 18297), (1159, 17334), (1539, 13054), (1647, 12198), (1926, 10431), (2033, 9882), (2318, 8667), (2889, 6954), (3078, 6527), (3294, 6099), (3477, 5778), (4066, 4941)]