80538080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71909}}^1$

素因数の和:71931

約数の個数: 48

約数和(自身を含む): 217455840

約数和(自身を除く): 136917760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 71909, 143818, 287636, 359545, 503363, 575272, 719090, 1006726, 1150544, 1438180, 2013452, 2301088, 2516815, 2876360, 4026904, 5033630, 5752720, 8053808, 10067260, 11505440, 16107616, 20134520, 40269040, 80538080]

約数ペア:

[(1, 80538080), (2, 40269040), (4, 20134520), (5, 16107616), (7, 11505440), (8, 10067260), (10, 8053808), (14, 5752720), (16, 5033630), (20, 4026904), (28, 2876360), (32, 2516815), (35, 2301088), (40, 2013452), (56, 1438180), (70, 1150544), (80, 1006726), (112, 719090), (140, 575272), (160, 503363), (224, 359545), (280, 287636), (560, 143818), (1120, 71909)]