20198420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91811}}^1$

素因数の和:91831

約数の個数: 24

約数和(自身を含む): 46273248

約数和(自身を除く): 26074828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 91811, 183622, 367244, 459055, 918110, 1009921, 1836220, 2019842, 4039684, 5049605, 10099210, 20198420]

約数ペア:

[(1, 20198420), (2, 10099210), (4, 5049605), (5, 4039684), (10, 2019842), (11, 1836220), (20, 1009921), (22, 918110), (44, 459055), (55, 367244), (110, 183622), (220, 91811)]