20776670275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1\times {\mathrm{853}}^1$

素因数の和:1360

約数の個数: 48

約数和(自身を含む): 27539737344

約数和(自身を除く): 6763067069

約数列:

[1, 5, 17, 25, 85, 223, 257, 425, 853, 1115, 1285, 3791, 4265, 4369, 5575, 6425, 14501, 18955, 21325, 21845, 57311, 72505, 94775, 109225, 190219, 219221, 286555, 362525, 951095, 974287, 1096105, 1432775, 3233723, 3726757, 4755475, 4871435, 5480525, 16168615, 18633785, 24357175, 48886283, 80843075, 93168925, 244431415, 831066811, 1222157075, 4155334055, 20776670275]

約数ペア:

[(1, 20776670275), (5, 4155334055), (17, 1222157075), (25, 831066811), (85, 244431415), (223, 93168925), (257, 80843075), (425, 48886283), (853, 24357175), (1115, 18633785), (1285, 16168615), (3791, 5480525), (4265, 4871435), (4369, 4755475), (5575, 3726757), (6425, 3233723), (14501, 1432775), (18955, 1096105), (21325, 974287), (21845, 951095), (57311, 362525), (72505, 286555), (94775, 219221), (109225, 190219)]