78642447

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 115718400

約数和(自身を除く): 37075953

約数列:

[1, 3, 13, 39, 89, 139, 163, 267, 417, 489, 1157, 1807, 2119, 3471, 5421, 6357, 12371, 14507, 22657, 37113, 43521, 67971, 160823, 188591, 294541, 482469, 565773, 883623, 2016473, 6049419, 26214149, 78642447]

約数ペア:

[(1, 78642447), (3, 26214149), (13, 6049419), (39, 2016473), (89, 883623), (139, 565773), (163, 482469), (267, 294541), (417, 188591), (489, 160823), (1157, 67971), (1807, 43521), (2119, 37113), (3471, 22657), (5421, 14507), (6357, 12371)]