16980971525

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{15889}}^1$

素因数の和:16134

約数の個数: 48

約数和(自身を含む): 24968401920

約数和(自身を除く): 7987430395

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 197, 217, 775, 985, 1085, 1379, 4925, 5425, 6107, 6895, 15889, 30535, 34475, 42749, 79445, 111223, 152675, 213745, 397225, 492559, 556115, 1068725, 2462795, 2780575, 3130133, 3447913, 12313975, 15650665, 17239565, 21910931, 78253325, 86197825, 97034123, 109554655, 485170615, 547773275, 679238861, 2425853075, 3396194305, 16980971525]

約数ペア:

[(1, 16980971525), (5, 3396194305), (7, 2425853075), (25, 679238861), (31, 547773275), (35, 485170615), (155, 109554655), (175, 97034123), (197, 86197825), (217, 78253325), (775, 21910931), (985, 17239565), (1085, 15650665), (1379, 12313975), (4925, 3447913), (5425, 3130133), (6107, 2780575), (6895, 2462795), (15889, 1068725), (30535, 556115), (34475, 492559), (42749, 397225), (79445, 213745), (111223, 152675)]