20128342

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{4931}}^1$

素因数の和:5103

約数の個数: 16

約数和(自身を含む): 32728752

約数和(自身を除く): 12600410

約数列:

[1, 2, 13, 26, 157, 314, 2041, 4082, 4931, 9862, 64103, 128206, 774167, 1548334, 10064171, 20128342]

約数ペア:

[(1, 20128342), (2, 10064171), (13, 1548334), (26, 774167), (157, 128206), (314, 64103), (2041, 9862), (4082, 4931)]