278782420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53819}}^1$

素因数の和:53872

約数の個数: 48

約数和(自身を含む): 687173760

約数和(自身を除く): 408391340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 53819, 107638, 215276, 269095, 376733, 538190, 753466, 1076380, 1506932, 1883665, 1991303, 3767330, 3982606, 7534660, 7965212, 9956515, 13939121, 19913030, 27878242, 39826060, 55756484, 69695605, 139391210, 278782420]

約数ペア:

[(1, 278782420), (2, 139391210), (4, 69695605), (5, 55756484), (7, 39826060), (10, 27878242), (14, 19913030), (20, 13939121), (28, 9956515), (35, 7965212), (37, 7534660), (70, 3982606), (74, 3767330), (140, 1991303), (148, 1883665), (185, 1506932), (259, 1076380), (370, 753466), (518, 538190), (740, 376733), (1036, 269095), (1295, 215276), (2590, 107638), (5180, 53819)]