20020203

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:134

約数の個数: 80

約数和(自身を含む): 37914624

約数和(自身を除く): 17894421

約数列:

[1, 3, 7, 9, 17, 21, 27, 31, 51, 63, 67, 81, 93, 119, 153, 189, 201, 217, 279, 357, 459, 469, 527, 567, 603, 651, 837, 1071, 1139, 1377, 1407, 1581, 1809, 1953, 2077, 2511, 3213, 3417, 3689, 4221, 4743, 5427, 5859, 6231, 7973, 9639, 10251, 11067, 12663, 14229, 14539, 17577, 18693, 23919, 30753, 33201, 35309, 37989, 42687, 43617, 56079, 71757, 92259, 99603, 105927, 130851, 168237, 215271, 247163, 298809, 317781, 392553, 645813, 741489, 953343, 1177659, 2224467, 2860029, 6673401, 20020203]

約数ペア:

[(1, 20020203), (3, 6673401), (7, 2860029), (9, 2224467), (17, 1177659), (21, 953343), (27, 741489), (31, 645813), (51, 392553), (63, 317781), (67, 298809), (81, 247163), (93, 215271), (119, 168237), (153, 130851), (189, 105927), (201, 99603), (217, 92259), (279, 71757), (357, 56079), (459, 43617), (469, 42687), (527, 37989), (567, 35309), (603, 33201), (651, 30753), (837, 23919), (1071, 18693), (1139, 17577), (1377, 14539), (1407, 14229), (1581, 12663), (1809, 11067), (1953, 10251), (2077, 9639), (2511, 7973), (3213, 6231), (3417, 5859), (3689, 5427), (4221, 4743)]