71680525

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 106882048

約数和(自身を除く): 35201523

約数列:

[1, 5, 7, 25, 31, 35, 73, 155, 175, 181, 217, 365, 511, 775, 905, 1085, 1267, 1825, 2263, 2555, 4525, 5425, 5611, 6335, 11315, 12775, 13213, 15841, 28055, 31675, 39277, 56575, 66065, 79205, 92491, 140275, 196385, 330325, 396025, 409603, 462455, 981925, 2048015, 2312275, 2867221, 10240075, 14336105, 71680525]

約数ペア:

[(1, 71680525), (5, 14336105), (7, 10240075), (25, 2867221), (31, 2312275), (35, 2048015), (73, 981925), (155, 462455), (175, 409603), (181, 396025), (217, 330325), (365, 196385), (511, 140275), (775, 92491), (905, 79205), (1085, 66065), (1267, 56575), (1825, 39277), (2263, 31675), (2555, 28055), (4525, 15841), (5425, 13213), (5611, 12775), (6335, 11315)]