20211457840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36091889}}^1$

素因数の和:36091909

約数の個数: 40

約数和(自身を含む): 53704732320

約数和(自身を除く): 33493274480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36091889, 72183778, 144367556, 180459445, 252643223, 288735112, 360918890, 505286446, 577470224, 721837780, 1010572892, 1263216115, 1443675560, 2021145784, 2526432230, 2887351120, 4042291568, 5052864460, 10105728920, 20211457840]

約数ペア:

[(1, 20211457840), (2, 10105728920), (4, 5052864460), (5, 4042291568), (7, 2887351120), (8, 2526432230), (10, 2021145784), (14, 1443675560), (16, 1263216115), (20, 1010572892), (28, 721837780), (35, 577470224), (40, 505286446), (56, 360918890), (70, 288735112), (80, 252643223), (112, 180459445), (140, 144367556), (280, 72183778), (560, 36091889)]