12803140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{839}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 31046400

約数和(自身を除く): 18243260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 839, 1090, 1526, 1678, 2180, 3052, 3356, 3815, 4195, 5873, 7630, 8390, 11746, 15260, 16780, 23492, 29365, 58730, 91451, 117460, 182902, 365804, 457255, 640157, 914510, 1280314, 1829020, 2560628, 3200785, 6401570, 12803140]

約数ペア:

[(1, 12803140), (2, 6401570), (4, 3200785), (5, 2560628), (7, 1829020), (10, 1280314), (14, 914510), (20, 640157), (28, 457255), (35, 365804), (70, 182902), (109, 117460), (140, 91451), (218, 58730), (436, 29365), (545, 23492), (763, 16780), (839, 15260), (1090, 11746), (1526, 8390), (1678, 7630), (2180, 5873), (3052, 4195), (3356, 3815)]