7978905

素因数分解:

$3^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:233

約数の個数: 56

約数和(自身を含む): 15739200

約数和(自身を除く): 7760295

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 199, 243, 297, 405, 495, 597, 729, 891, 995, 1215, 1485, 1791, 2189, 2673, 2985, 3645, 4455, 5373, 6567, 8019, 8955, 10945, 13365, 16119, 19701, 26865, 32835, 40095, 48357, 59103, 80595, 98505, 145071, 177309, 241785, 295515, 531927, 725355, 886545, 1595781, 2659635, 7978905]

約数ペア:

[(1, 7978905), (3, 2659635), (5, 1595781), (9, 886545), (11, 725355), (15, 531927), (27, 295515), (33, 241785), (45, 177309), (55, 145071), (81, 98505), (99, 80595), (135, 59103), (165, 48357), (199, 40095), (243, 32835), (297, 26865), (405, 19701), (495, 16119), (597, 13365), (729, 10945), (891, 8955), (995, 8019), (1215, 6567), (1485, 5373), (1791, 4455), (2189, 3645), (2673, 2985)]