20506030

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:444

約数の個数: 32

約数和(自身を含む): 37895040

約数和(自身を除く): 17389010

約数列:

[1, 2, 5, 10, 79, 101, 158, 202, 257, 395, 505, 514, 790, 1010, 1285, 2570, 7979, 15958, 20303, 25957, 39895, 40606, 51914, 79790, 101515, 129785, 203030, 259570, 2050603, 4101206, 10253015, 20506030]

約数ペア:

[(1, 20506030), (2, 10253015), (5, 4101206), (10, 2050603), (79, 259570), (101, 203030), (158, 129785), (202, 101515), (257, 79790), (395, 51914), (505, 40606), (514, 39895), (790, 25957), (1010, 20303), (1285, 15958), (2570, 7979)]