520049397

素因数分解:

$3^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 80

約数和(自身を含む): 890583552

約数和(自身を除く): 370534155

約数列:

[1, 3, 7, 17, 21, 31, 49, 51, 93, 119, 137, 147, 217, 343, 357, 411, 527, 651, 833, 959, 1029, 1519, 1581, 2329, 2401, 2499, 2877, 3689, 4247, 4557, 5831, 6713, 6987, 7203, 10633, 11067, 12741, 16303, 17493, 20139, 25823, 29729, 31899, 40817, 46991, 48909, 72199, 74431, 77469, 89187, 114121, 122451, 140973, 180761, 208103, 216597, 223293, 328937, 342363, 505393, 542283, 624309, 798847, 986811, 1265327, 1456721, 1516179, 2396541, 3537751, 3795981, 4370163, 5591929, 10197047, 10613253, 16775787, 24764257, 30591141, 74292771, 173349799, 520049397]

約数ペア:

[(1, 520049397), (3, 173349799), (7, 74292771), (17, 30591141), (21, 24764257), (31, 16775787), (49, 10613253), (51, 10197047), (93, 5591929), (119, 4370163), (137, 3795981), (147, 3537751), (217, 2396541), (343, 1516179), (357, 1456721), (411, 1265327), (527, 986811), (651, 798847), (833, 624309), (959, 542283), (1029, 505393), (1519, 342363), (1581, 328937), (2329, 223293), (2401, 216597), (2499, 208103), (2877, 180761), (3689, 140973), (4247, 122451), (4557, 114121), (5831, 89187), (6713, 77469), (6987, 74431), (7203, 72199), (10633, 48909), (11067, 46991), (12741, 40817), (16303, 31899), (17493, 29729), (20139, 25823)]