205568580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{489449}}^1$

素因数の和:489468

約数の個数: 48

約数和(自身を含む): 657820800

約数和(自身を除く): 452252220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 489449, 978898, 1468347, 1957796, 2447245, 2936694, 3426143, 4894490, 5873388, 6852286, 7341735, 9788980, 10278429, 13704572, 14683470, 17130715, 20556858, 29366940, 34261430, 41113716, 51392145, 68522860, 102784290, 205568580]

約数ペア:

[(1, 205568580), (2, 102784290), (3, 68522860), (4, 51392145), (5, 41113716), (6, 34261430), (7, 29366940), (10, 20556858), (12, 17130715), (14, 14683470), (15, 13704572), (20, 10278429), (21, 9788980), (28, 7341735), (30, 6852286), (35, 5873388), (42, 4894490), (60, 3426143), (70, 2936694), (84, 2447245), (105, 1957796), (140, 1468347), (210, 978898), (420, 489449)]