220407551

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 302776320

約数和(自身を除く): 82368769

約数列:

[1, 7, 13, 23, 31, 43, 79, 91, 161, 217, 299, 301, 403, 553, 559, 713, 989, 1027, 1333, 1817, 2093, 2449, 2821, 3397, 3913, 4991, 6923, 7189, 9269, 9331, 12719, 12857, 17143, 17329, 23621, 23779, 30659, 31837, 44161, 56327, 64883, 78131, 89999, 105307, 121303, 165347, 214613, 222859, 309127, 394289, 398567, 546917, 732251, 737149, 1015703, 1368991, 2422061, 2789969, 5125757, 7109921, 9582937, 16954427, 31486793, 220407551]

約数ペア:

[(1, 220407551), (7, 31486793), (13, 16954427), (23, 9582937), (31, 7109921), (43, 5125757), (79, 2789969), (91, 2422061), (161, 1368991), (217, 1015703), (299, 737149), (301, 732251), (403, 546917), (553, 398567), (559, 394289), (713, 309127), (989, 222859), (1027, 214613), (1333, 165347), (1817, 121303), (2093, 105307), (2449, 89999), (2821, 78131), (3397, 64883), (3913, 56327), (4991, 44161), (6923, 31837), (7189, 30659), (9269, 23779), (9331, 23621), (12719, 17329), (12857, 17143)]