85017820

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 183506400

約数和(自身を除く): 98488580

約数列:

[1, 2, 4, 5, 10, 20, 59, 109, 118, 218, 236, 295, 436, 545, 590, 661, 1090, 1180, 1322, 2180, 2644, 3305, 6431, 6610, 12862, 13220, 25724, 32155, 38999, 64310, 72049, 77998, 128620, 144098, 155996, 194995, 288196, 360245, 389990, 720490, 779980, 1440980, 4250891, 8501782, 17003564, 21254455, 42508910, 85017820]

約数ペア:

[(1, 85017820), (2, 42508910), (4, 21254455), (5, 17003564), (10, 8501782), (20, 4250891), (59, 1440980), (109, 779980), (118, 720490), (218, 389990), (236, 360245), (295, 288196), (436, 194995), (545, 155996), (590, 144098), (661, 128620), (1090, 77998), (1180, 72049), (1322, 64310), (2180, 38999), (2644, 32155), (3305, 25724), (6431, 13220), (6610, 12862)]