209275480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127607}}^1$

素因数の和:127659

約数の個数: 32

約数和(自身を含む): 482358240

約数和(自身を除く): 273082760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 127607, 255214, 510428, 638035, 1020856, 1276070, 2552140, 5104280, 5231887, 10463774, 20927548, 26159435, 41855096, 52318870, 104637740, 209275480]

約数ペア:

[(1, 209275480), (2, 104637740), (4, 52318870), (5, 41855096), (8, 26159435), (10, 20927548), (20, 10463774), (40, 5231887), (41, 5104280), (82, 2552140), (164, 1276070), (205, 1020856), (328, 638035), (410, 510428), (820, 255214), (1640, 127607)]