1280167660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{56197}}^1$

素因数の和:56290

約数の個数: 48

約数和(自身を含む): 2889026784

約数和(自身を除く): 1608859124

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 4556, 5695, 11390, 22780, 56197, 112394, 224788, 280985, 561970, 955349, 1123940, 1910698, 3765199, 3821396, 4776745, 7530398, 9553490, 15060796, 18825995, 19106980, 37651990, 64008383, 75303980, 128016766, 256033532, 320041915, 640083830, 1280167660]

約数ペア:

[(1, 1280167660), (2, 640083830), (4, 320041915), (5, 256033532), (10, 128016766), (17, 75303980), (20, 64008383), (34, 37651990), (67, 19106980), (68, 18825995), (85, 15060796), (134, 9553490), (170, 7530398), (268, 4776745), (335, 3821396), (340, 3765199), (670, 1910698), (1139, 1123940), (1340, 955349), (2278, 561970), (4556, 280985), (5695, 224788), (11390, 112394), (22780, 56197)]