20578310

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{947}}^1$

素因数の和:1048

約数の個数: 32

約数和(自身を含む): 38701152

約数和(自身を除く): 18122842

約数列:

[1, 2, 5, 10, 41, 53, 82, 106, 205, 265, 410, 530, 947, 1894, 2173, 4346, 4735, 9470, 10865, 21730, 38827, 50191, 77654, 100382, 194135, 250955, 388270, 501910, 2057831, 4115662, 10289155, 20578310]

約数ペア:

[(1, 20578310), (2, 10289155), (5, 4115662), (10, 2057831), (41, 501910), (53, 388270), (82, 250955), (106, 194135), (205, 100382), (265, 77654), (410, 50191), (530, 38827), (947, 21730), (1894, 10865), (2173, 9470), (4346, 4735)]