311857980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{742519}}^1$

素因数の和:742538

約数の個数: 48

約数和(自身を含む): 997946880

約数和(自身を除く): 686088900

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, 742519, 1485038, 2227557, 2970076, 3712595, 4455114, 5197633, 7425190, 8910228, 10395266, 11137785, 14850380, 15592899, 20790532, 22275570, 25988165, 31185798, 44551140, 51976330, 62371596, 77964495, 103952660, 155928990, 311857980]

約数ペア:

[(1, 311857980), (2, 155928990), (3, 103952660), (4, 77964495), (5, 62371596), (6, 51976330), (7, 44551140), (10, 31185798), (12, 25988165), (14, 22275570), (15, 20790532), (20, 15592899), (21, 14850380), (28, 11137785), (30, 10395266), (35, 8910228), (42, 7425190), (60, 5197633), (70, 4455114), (84, 3712595), (105, 2970076), (140, 2227557), (210, 1485038), (420, 742519)]