28620720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:459

約数の個数: 120

約数和(自身を含む): 97184256

約数和(自身を除く): 68563536

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 127, 144, 180, 240, 254, 313, 360, 381, 508, 626, 635, 720, 762, 939, 1016, 1143, 1252, 1270, 1524, 1565, 1878, 1905, 2032, 2286, 2504, 2540, 2817, 3048, 3130, 3756, 3810, 4572, 4695, 5008, 5080, 5634, 5715, 6096, 6260, 7512, 7620, 9144, 9390, 10160, 11268, 11430, 12520, 14085, 15024, 15240, 18288, 18780, 22536, 22860, 25040, 28170, 30480, 37560, 39751, 45072, 45720, 56340, 75120, 79502, 91440, 112680, 119253, 159004, 198755, 225360, 238506, 318008, 357759, 397510, 477012, 596265, 636016, 715518, 795020, 954024, 1192530, 1431036, 1590040, 1788795, 1908048, 2385060, 2862072, 3180080, 3577590, 4770120, 5724144, 7155180, 9540240, 14310360, 28620720]

約数ペア:

[(1, 28620720), (2, 14310360), (3, 9540240), (4, 7155180), (5, 5724144), (6, 4770120), (8, 3577590), (9, 3180080), (10, 2862072), (12, 2385060), (15, 1908048), (16, 1788795), (18, 1590040), (20, 1431036), (24, 1192530), (30, 954024), (36, 795020), (40, 715518), (45, 636016), (48, 596265), (60, 477012), (72, 397510), (80, 357759), (90, 318008), (120, 238506), (127, 225360), (144, 198755), (180, 159004), (240, 119253), (254, 112680), (313, 91440), (360, 79502), (381, 75120), (508, 56340), (626, 45720), (635, 45072), (720, 39751), (762, 37560), (939, 30480), (1016, 28170), (1143, 25040), (1252, 22860), (1270, 22536), (1524, 18780), (1565, 18288), (1878, 15240), (1905, 15024), (2032, 14085), (2286, 12520), (2504, 11430), (2540, 11268), (2817, 10160), (3048, 9390), (3130, 9144), (3756, 7620), (3810, 7512), (4572, 6260), (4695, 6096), (5008, 5715), (5080, 5634)]