646633368

素因数分解:

$2^3\times 3^4\times {\mathrm{997891}}^1$

素因数の和:997909

約数の個数: 40

約数和(自身を含む): 1811173980

約数和(自身を除く): 1164540612

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 997891, 1995782, 2993673, 3991564, 5987346, 7983128, 8981019, 11974692, 17962038, 23949384, 26943057, 35924076, 53886114, 71848152, 80829171, 107772228, 161658342, 215544456, 323316684, 646633368]

約数ペア:

[(1, 646633368), (2, 323316684), (3, 215544456), (4, 161658342), (6, 107772228), (8, 80829171), (9, 71848152), (12, 53886114), (18, 35924076), (24, 26943057), (27, 23949384), (36, 17962038), (54, 11974692), (72, 8981019), (81, 7983128), (108, 5987346), (162, 3991564), (216, 2993673), (324, 1995782), (648, 997891)]