639202218

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{839}}^1$

素因数の和:1067

約数の個数: 64

約数和(自身を含む): 1388620800

約数和(自身を除く): 749418582

約数列:

[1, 2, 3, 6, 19, 38, 41, 57, 82, 114, 123, 163, 246, 326, 489, 779, 839, 978, 1558, 1678, 2337, 2517, 3097, 4674, 5034, 6194, 6683, 9291, 13366, 15941, 18582, 20049, 31882, 34399, 40098, 47823, 68798, 95646, 103197, 126977, 136757, 206394, 253954, 273514, 380931, 410271, 653581, 761862, 820542, 1307162, 1960743, 2598383, 3921486, 5196766, 5607037, 7795149, 11214074, 15590298, 16821111, 33642222, 106533703, 213067406, 319601109, 639202218]

約数ペア:

[(1, 639202218), (2, 319601109), (3, 213067406), (6, 106533703), (19, 33642222), (38, 16821111), (41, 15590298), (57, 11214074), (82, 7795149), (114, 5607037), (123, 5196766), (163, 3921486), (246, 2598383), (326, 1960743), (489, 1307162), (779, 820542), (839, 761862), (978, 653581), (1558, 410271), (1678, 380931), (2337, 273514), (2517, 253954), (3097, 206394), (4674, 136757), (5034, 126977), (6194, 103197), (6683, 95646), (9291, 68798), (13366, 47823), (15941, 40098), (18582, 34399), (20049, 31882)]