20009306864

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20501339}}^1$

素因数の和:20501408

約数の個数: 20

約数和(自身を含む): 39403575480

約数和(自身を除く): 19394268616

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20501339, 41002678, 82005356, 164010712, 328021424, 1250581679, 2501163358, 5002326716, 10004653432, 20009306864]

約数ペア:

[(1, 20009306864), (2, 10004653432), (4, 5002326716), (8, 2501163358), (16, 1250581679), (61, 328021424), (122, 164010712), (244, 82005356), (488, 41002678), (976, 20501339)]