399296880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{839}}^1$

素因数の和:1519

約数の個数: 120

約数和(自身を含む): 1344601440

約数和(自身を除く): 945304560

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, 144, 180, 240, 360, 661, 720, 839, 1322, 1678, 1983, 2517, 2644, 3305, 3356, 3966, 4195, 5034, 5288, 5949, 6610, 6712, 7551, 7932, 8390, 9915, 10068, 10576, 11898, 12585, 13220, 13424, 15102, 15864, 16780, 19830, 20136, 23796, 25170, 26440, 29745, 30204, 31728, 33560, 37755, 39660, 40272, 47592, 50340, 52880, 59490, 60408, 67120, 75510, 79320, 95184, 100680, 118980, 120816, 151020, 158640, 201360, 237960, 302040, 475920, 554579, 604080, 1109158, 1663737, 2218316, 2772895, 3327474, 4436632, 4991211, 5545790, 6654948, 8318685, 8873264, 9982422, 11091580, 13309896, 16637370, 19964844, 22183160, 24956055, 26619792, 33274740, 39929688, 44366320, 49912110, 66549480, 79859376, 99824220, 133098960, 199648440, 399296880]

約数ペア:

[(1, 399296880), (2, 199648440), (3, 133098960), (4, 99824220), (5, 79859376), (6, 66549480), (8, 49912110), (9, 44366320), (10, 39929688), (12, 33274740), (15, 26619792), (16, 24956055), (18, 22183160), (20, 19964844), (24, 16637370), (30, 13309896), (36, 11091580), (40, 9982422), (45, 8873264), (48, 8318685), (60, 6654948), (72, 5545790), (80, 4991211), (90, 4436632), (120, 3327474), (144, 2772895), (180, 2218316), (240, 1663737), (360, 1109158), (661, 604080), (720, 554579), (839, 475920), (1322, 302040), (1678, 237960), (1983, 201360), (2517, 158640), (2644, 151020), (3305, 120816), (3356, 118980), (3966, 100680), (4195, 95184), (5034, 79320), (5288, 75510), (5949, 67120), (6610, 60408), (6712, 59490), (7551, 52880), (7932, 50340), (8390, 47592), (9915, 40272), (10068, 39660), (10576, 37755), (11898, 33560), (12585, 31728), (13220, 30204), (13424, 29745), (15102, 26440), (15864, 25170), (16780, 23796), (19830, 20136)]