28391760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{839}}^1$

素因数の和:905

約数の個数: 120

約数和(自身を含む): 97493760

約数和(自身を除く): 69102000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 120, 141, 144, 180, 188, 235, 240, 282, 360, 376, 423, 470, 564, 705, 720, 752, 839, 846, 940, 1128, 1410, 1678, 1692, 1880, 2115, 2256, 2517, 2820, 3356, 3384, 3760, 4195, 4230, 5034, 5640, 6712, 6768, 7551, 8390, 8460, 10068, 11280, 12585, 13424, 15102, 16780, 16920, 20136, 25170, 30204, 33560, 33840, 37755, 39433, 40272, 50340, 60408, 67120, 75510, 78866, 100680, 118299, 120816, 151020, 157732, 197165, 201360, 236598, 302040, 315464, 354897, 394330, 473196, 591495, 604080, 630928, 709794, 788660, 946392, 1182990, 1419588, 1577320, 1774485, 1892784, 2365980, 2839176, 3154640, 3548970, 4731960, 5678352, 7097940, 9463920, 14195880, 28391760]

約数ペア:

[(1, 28391760), (2, 14195880), (3, 9463920), (4, 7097940), (5, 5678352), (6, 4731960), (8, 3548970), (9, 3154640), (10, 2839176), (12, 2365980), (15, 1892784), (16, 1774485), (18, 1577320), (20, 1419588), (24, 1182990), (30, 946392), (36, 788660), (40, 709794), (45, 630928), (47, 604080), (48, 591495), (60, 473196), (72, 394330), (80, 354897), (90, 315464), (94, 302040), (120, 236598), (141, 201360), (144, 197165), (180, 157732), (188, 151020), (235, 120816), (240, 118299), (282, 100680), (360, 78866), (376, 75510), (423, 67120), (470, 60408), (564, 50340), (705, 40272), (720, 39433), (752, 37755), (839, 33840), (846, 33560), (940, 30204), (1128, 25170), (1410, 20136), (1678, 16920), (1692, 16780), (1880, 15102), (2115, 13424), (2256, 12585), (2517, 11280), (2820, 10068), (3356, 8460), (3384, 8390), (3760, 7551), (4195, 6768), (4230, 6712), (5034, 5640)]