3886640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2557}}^1$

素因数の和:2589

約数の個数: 40

約数和(自身を含む): 9515760

約数和(自身を除く): 5629120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 2557, 5114, 10228, 12785, 20456, 25570, 40912, 48583, 51140, 97166, 102280, 194332, 204560, 242915, 388664, 485830, 777328, 971660, 1943320, 3886640]

約数ペア:

[(1, 3886640), (2, 1943320), (4, 971660), (5, 777328), (8, 485830), (10, 388664), (16, 242915), (19, 204560), (20, 194332), (38, 102280), (40, 97166), (76, 51140), (80, 48583), (95, 40912), (152, 25570), (190, 20456), (304, 12785), (380, 10228), (760, 5114), (1520, 2557)]