123137840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{219889}}^1$

素因数の和:219909

約数の個数: 40

約数和(自身を含む): 327196320

約数和(自身を除く): 204058480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 219889, 439778, 879556, 1099445, 1539223, 1759112, 2198890, 3078446, 3518224, 4397780, 6156892, 7696115, 8795560, 12313784, 15392230, 17591120, 24627568, 30784460, 61568920, 123137840]

約数ペア:

[(1, 123137840), (2, 61568920), (4, 30784460), (5, 24627568), (7, 17591120), (8, 15392230), (10, 12313784), (14, 8795560), (16, 7696115), (20, 6156892), (28, 4397780), (35, 3518224), (40, 3078446), (56, 2198890), (70, 1759112), (80, 1539223), (112, 1099445), (140, 879556), (280, 439778), (560, 219889)]