20644104

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 35481336

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 127, 156, 254, 312, 381, 508, 521, 762, 1016, 1042, 1524, 1563, 1651, 2084, 3048, 3126, 3302, 4168, 4953, 6252, 6604, 6773, 9906, 12504, 13208, 13546, 19812, 20319, 27092, 39624, 40638, 54184, 66167, 81276, 132334, 162552, 198501, 264668, 397002, 529336, 794004, 860171, 1588008, 1720342, 2580513, 3440684, 5161026, 6881368, 10322052, 20644104]

約数ペア:

[(1, 20644104), (2, 10322052), (3, 6881368), (4, 5161026), (6, 3440684), (8, 2580513), (12, 1720342), (13, 1588008), (24, 860171), (26, 794004), (39, 529336), (52, 397002), (78, 264668), (104, 198501), (127, 162552), (156, 132334), (254, 81276), (312, 66167), (381, 54184), (508, 40638), (521, 39624), (762, 27092), (1016, 20319), (1042, 19812), (1524, 13546), (1563, 13208), (1651, 12504), (2084, 9906), (3048, 6773), (3126, 6604), (3302, 6252), (4168, 4953)]