80958640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144569}}^1$

素因数の和:144589

約数の個数: 40

約数和(自身を含む): 215120160

約数和(自身を除く): 134161520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144569, 289138, 578276, 722845, 1011983, 1156552, 1445690, 2023966, 2313104, 2891380, 4047932, 5059915, 5782760, 8095864, 10119830, 11565520, 16191728, 20239660, 40479320, 80958640]

約数ペア:

[(1, 80958640), (2, 40479320), (4, 20239660), (5, 16191728), (7, 11565520), (8, 10119830), (10, 8095864), (14, 5782760), (16, 5059915), (20, 4047932), (28, 2891380), (35, 2313104), (40, 2023966), (56, 1445690), (70, 1156552), (80, 1011983), (112, 722845), (140, 578276), (280, 289138), (560, 144569)]