128901220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{8447}}^1$

素因数の和:8572

約数の個数: 48

約数和(自身を含む): 312238080

約数和(自身を除く): 183336860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 7630, 8447, 15260, 16894, 33788, 42235, 59129, 84470, 118258, 168940, 236516, 295645, 591290, 920723, 1182580, 1841446, 3682892, 4603615, 6445061, 9207230, 12890122, 18414460, 25780244, 32225305, 64450610, 128901220]

約数ペア:

[(1, 128901220), (2, 64450610), (4, 32225305), (5, 25780244), (7, 18414460), (10, 12890122), (14, 9207230), (20, 6445061), (28, 4603615), (35, 3682892), (70, 1841446), (109, 1182580), (140, 920723), (218, 591290), (436, 295645), (545, 236516), (763, 168940), (1090, 118258), (1526, 84470), (2180, 59129), (3052, 42235), (3815, 33788), (7630, 16894), (8447, 15260)]