641396975

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{35983}}^1$

素因数の和:36047

約数の個数: 24

約数和(自身を含む): 856707072

約数和(自身を除く): 215310097

約数列:

[1, 5, 23, 25, 31, 115, 155, 575, 713, 775, 3565, 17825, 35983, 179915, 827609, 899575, 1115473, 4138045, 5577365, 20690225, 25655879, 27886825, 128279395, 641396975]

約数ペア:

[(1, 641396975), (5, 128279395), (23, 27886825), (25, 25655879), (31, 20690225), (115, 5577365), (155, 4138045), (575, 1115473), (713, 899575), (775, 827609), (3565, 179915), (17825, 35983)]