80011960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{285757}}^1$

素因数の和:285775

約数の個数: 32

約数和(自身を含む): 205745760

約数和(自身を除く): 125733800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 285757, 571514, 1143028, 1428785, 2000299, 2286056, 2857570, 4000598, 5715140, 8001196, 10001495, 11430280, 16002392, 20002990, 40005980, 80011960]

約数ペア:

[(1, 80011960), (2, 40005980), (4, 20002990), (5, 16002392), (7, 11430280), (8, 10001495), (10, 8001196), (14, 5715140), (20, 4000598), (28, 2857570), (35, 2286056), (40, 2000299), (56, 1428785), (70, 1143028), (140, 571514), (280, 285757)]