1212686580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{2887349}}^1$

素因数の和:2887368

約数の個数: 48

約数和(自身を含む): 3880598400

約数和(自身を除く): 2667911820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 2887349, 5774698, 8662047, 11549396, 14436745, 17324094, 20211443, 28873490, 34648188, 40422886, 43310235, 57746980, 60634329, 80845772, 86620470, 101057215, 121268658, 173240940, 202114430, 242537316, 303171645, 404228860, 606343290, 1212686580]

約数ペア:

[(1, 1212686580), (2, 606343290), (3, 404228860), (4, 303171645), (5, 242537316), (6, 202114430), (7, 173240940), (10, 121268658), (12, 101057215), (14, 86620470), (15, 80845772), (20, 60634329), (21, 57746980), (28, 43310235), (30, 40422886), (35, 34648188), (42, 28873490), (60, 20211443), (70, 17324094), (84, 14436745), (105, 11549396), (140, 8662047), (210, 5774698), (420, 2887349)]