28178804591

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{769}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 35386982400

約数和(自身を除く): 7208177809

約数列:

[1, 7, 23, 43, 67, 79, 161, 301, 469, 553, 769, 989, 1541, 1817, 2881, 3397, 5293, 5383, 6923, 10787, 12719, 17687, 20167, 23779, 33067, 37051, 51523, 60751, 66263, 78131, 121739, 123809, 227599, 231469, 360661, 425257, 463841, 546917, 760541, 852173, 1185029, 1397273, 1593193, 2215489, 2612293, 4070317, 5234777, 5323787, 8295203, 9780911, 15508423, 18286051, 28492219, 36643439, 50956247, 60082739, 93617291, 175023631, 356693729, 420579173, 655321037, 1225165417, 4025543513, 28178804591]

約数ペア:

[(1, 28178804591), (7, 4025543513), (23, 1225165417), (43, 655321037), (67, 420579173), (79, 356693729), (161, 175023631), (301, 93617291), (469, 60082739), (553, 50956247), (769, 36643439), (989, 28492219), (1541, 18286051), (1817, 15508423), (2881, 9780911), (3397, 8295203), (5293, 5323787), (5383, 5234777), (6923, 4070317), (10787, 2612293), (12719, 2215489), (17687, 1593193), (20167, 1397273), (23779, 1185029), (33067, 852173), (37051, 760541), (51523, 546917), (60751, 463841), (66263, 425257), (78131, 360661), (121739, 231469), (123809, 227599)]