1909180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1049}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 4939200

約数和(自身を除く): 3030020

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1049, 1820, 2098, 4196, 5245, 7343, 10490, 13637, 14686, 20980, 27274, 29372, 36715, 54548, 68185, 73430, 95459, 136370, 146860, 190918, 272740, 381836, 477295, 954590, 1909180]

約数ペア:

[(1, 1909180), (2, 954590), (4, 477295), (5, 381836), (7, 272740), (10, 190918), (13, 146860), (14, 136370), (20, 95459), (26, 73430), (28, 68185), (35, 54548), (52, 36715), (65, 29372), (70, 27274), (91, 20980), (130, 14686), (140, 13637), (182, 10490), (260, 7343), (364, 5245), (455, 4196), (910, 2098), (1049, 1820)]