80879120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144427}}^1$

素因数の和:144447

約数の個数: 40

約数和(自身を含む): 214908864

約数和(自身を除く): 134029744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144427, 288854, 577708, 722135, 1010989, 1155416, 1444270, 2021978, 2310832, 2888540, 4043956, 5054945, 5777080, 8087912, 10109890, 11554160, 16175824, 20219780, 40439560, 80879120]

約数ペア:

[(1, 80879120), (2, 40439560), (4, 20219780), (5, 16175824), (7, 11554160), (8, 10109890), (10, 8087912), (14, 5777080), (16, 5054945), (20, 4043956), (28, 2888540), (35, 2310832), (40, 2021978), (56, 1444270), (70, 1155416), (80, 1010989), (112, 722135), (140, 577708), (280, 288854), (560, 144427)]