20078972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{15541}}^1$

素因数の和:15581

約数の個数: 24

約数和(自身を含む): 39165840

約数和(自身を除く): 19086868

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 15541, 31082, 62164, 264197, 295279, 528394, 590558, 1056788, 1181116, 5019743, 10039486, 20078972]

約数ペア:

[(1, 20078972), (2, 10039486), (4, 5019743), (17, 1181116), (19, 1056788), (34, 590558), (38, 528394), (68, 295279), (76, 264197), (323, 62164), (646, 31082), (1292, 15541)]