8194820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 18144000

約数和(自身を除く): 9949180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 199, 284, 290, 355, 398, 580, 710, 796, 995, 1420, 1990, 2059, 3980, 4118, 5771, 8236, 10295, 11542, 14129, 20590, 23084, 28258, 28855, 41180, 56516, 57710, 70645, 115420, 141290, 282580, 409741, 819482, 1638964, 2048705, 4097410, 8194820]

約数ペア:

[(1, 8194820), (2, 4097410), (4, 2048705), (5, 1638964), (10, 819482), (20, 409741), (29, 282580), (58, 141290), (71, 115420), (116, 70645), (142, 57710), (145, 56516), (199, 41180), (284, 28855), (290, 28258), (355, 23084), (398, 20590), (580, 14129), (710, 11542), (796, 10295), (995, 8236), (1420, 5771), (1990, 4118), (2059, 3980)]