2157260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:846

約数の個数: 48

約数和(自身を含む): 5456640

約数和(自身を除く): 3299380

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 811, 1330, 1622, 2660, 3244, 4055, 5677, 8110, 11354, 15409, 16220, 22708, 28385, 30818, 56770, 61636, 77045, 107863, 113540, 154090, 215726, 308180, 431452, 539315, 1078630, 2157260]

約数ペア:

[(1, 2157260), (2, 1078630), (4, 539315), (5, 431452), (7, 308180), (10, 215726), (14, 154090), (19, 113540), (20, 107863), (28, 77045), (35, 61636), (38, 56770), (70, 30818), (76, 28385), (95, 22708), (133, 16220), (140, 15409), (190, 11354), (266, 8110), (380, 5677), (532, 4055), (665, 3244), (811, 2660), (1330, 1622)]