20730475

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1163}}^1$

素因数の和:1227

約数の個数: 24

約数和(自身を含む): 27712512

約数和(自身を除く): 6982037

約数列:

[1, 5, 23, 25, 31, 115, 155, 575, 713, 775, 1163, 3565, 5815, 17825, 26749, 29075, 36053, 133745, 180265, 668725, 829219, 901325, 4146095, 20730475]

約数ペア:

[(1, 20730475), (5, 4146095), (23, 901325), (25, 829219), (31, 668725), (115, 180265), (155, 133745), (575, 36053), (713, 29075), (775, 26749), (1163, 17825), (3565, 5815)]