72485840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{129439}}^1$

素因数の和:129459

約数の個数: 40

約数和(自身を含む): 192606720

約数和(自身を除く): 120120880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 129439, 258878, 517756, 647195, 906073, 1035512, 1294390, 1812146, 2071024, 2588780, 3624292, 4530365, 5177560, 7248584, 9060730, 10355120, 14497168, 18121460, 36242920, 72485840]

約数ペア:

[(1, 72485840), (2, 36242920), (4, 18121460), (5, 14497168), (7, 10355120), (8, 9060730), (10, 7248584), (14, 5177560), (16, 4530365), (20, 3624292), (28, 2588780), (35, 2071024), (40, 1812146), (56, 1294390), (70, 1035512), (80, 906073), (112, 647195), (140, 517756), (280, 258878), (560, 129439)]