257876460

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{769}}^1$

素因数の和:819

約数の個数: 168

約数和(自身を含む): 848342880

約数和(自身を除く): 590466420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 81, 90, 92, 108, 115, 135, 138, 162, 180, 207, 230, 243, 270, 276, 324, 345, 405, 414, 460, 486, 540, 621, 690, 729, 769, 810, 828, 972, 1035, 1215, 1242, 1380, 1458, 1538, 1620, 1863, 2070, 2307, 2430, 2484, 2916, 3076, 3105, 3645, 3726, 3845, 4140, 4614, 4860, 5589, 6210, 6921, 7290, 7452, 7690, 9228, 9315, 11178, 11535, 12420, 13842, 14580, 15380, 16767, 17687, 18630, 20763, 22356, 23070, 27684, 27945, 33534, 34605, 35374, 37260, 41526, 46140, 53061, 55890, 62289, 67068, 69210, 70748, 83052, 83835, 88435, 103815, 106122, 111780, 124578, 138420, 159183, 167670, 176870, 186867, 207630, 212244, 249156, 265305, 311445, 318366, 335340, 353740, 373734, 415260, 477549, 530610, 560601, 622890, 636732, 747468, 795915, 934335, 955098, 1061220, 1121202, 1245780, 1432647, 1591830, 1868670, 1910196, 2242404, 2387745, 2803005, 2865294, 3183660, 3737340, 4297941, 4775490, 5606010, 5730588, 7163235, 8595882, 9550980, 11212020, 12893823, 14326470, 17191764, 21489705, 25787646, 28652940, 42979410, 51575292, 64469115, 85958820, 128938230, 257876460]

約数ペア:

[(1, 257876460), (2, 128938230), (3, 85958820), (4, 64469115), (5, 51575292), (6, 42979410), (9, 28652940), (10, 25787646), (12, 21489705), (15, 17191764), (18, 14326470), (20, 12893823), (23, 11212020), (27, 9550980), (30, 8595882), (36, 7163235), (45, 5730588), (46, 5606010), (54, 4775490), (60, 4297941), (69, 3737340), (81, 3183660), (90, 2865294), (92, 2803005), (108, 2387745), (115, 2242404), (135, 1910196), (138, 1868670), (162, 1591830), (180, 1432647), (207, 1245780), (230, 1121202), (243, 1061220), (270, 955098), (276, 934335), (324, 795915), (345, 747468), (405, 636732), (414, 622890), (460, 560601), (486, 530610), (540, 477549), (621, 415260), (690, 373734), (729, 353740), (769, 335340), (810, 318366), (828, 311445), (972, 265305), (1035, 249156), (1215, 212244), (1242, 207630), (1380, 186867), (1458, 176870), (1538, 167670), (1620, 159183), (1863, 138420), (2070, 124578), (2307, 111780), (2430, 106122), (2484, 103815), (2916, 88435), (3076, 83835), (3105, 83052), (3645, 70748), (3726, 69210), (3845, 67068), (4140, 62289), (4614, 55890), (4860, 53061), (5589, 46140), (6210, 41526), (6921, 37260), (7290, 35374), (7452, 34605), (7690, 33534), (9228, 27945), (9315, 27684), (11178, 23070), (11535, 22356), (12420, 20763), (13842, 18630), (14580, 17687), (15380, 16767)]