78818518

素因数分解:

$2^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1\times {\mathrm{797}}^1$

素因数の和:1247

約数の個数: 16

約数和(自身を含む): 119451024

約数和(自身を除く): 40632506

約数列:

[1, 2, 197, 251, 394, 502, 797, 1594, 49447, 98894, 157009, 200047, 314018, 400094, 39409259, 78818518]

約数ペア:

[(1, 78818518), (2, 39409259), (197, 400094), (251, 314018), (394, 200047), (502, 157009), (797, 98894), (1594, 49447)]