278889120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{661}}^1$

素因数の和:975

約数の個数: 144

約数和(自身を含む): 956401992

約数和(自身を除く): 677512872

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 293, 360, 480, 586, 661, 720, 879, 1172, 1322, 1440, 1465, 1758, 1983, 2344, 2637, 2644, 2930, 3305, 3516, 3966, 4395, 4688, 5274, 5288, 5860, 5949, 6610, 7032, 7932, 8790, 9376, 9915, 10548, 10576, 11720, 11898, 13185, 13220, 14064, 15864, 17580, 19830, 21096, 21152, 23440, 23796, 26370, 26440, 28128, 29745, 31728, 35160, 39660, 42192, 46880, 47592, 52740, 52880, 59490, 63456, 70320, 79320, 84384, 95184, 105480, 105760, 118980, 140640, 158640, 190368, 193673, 210960, 237960, 317280, 387346, 421920, 475920, 581019, 774692, 951840, 968365, 1162038, 1549384, 1743057, 1936730, 2324076, 2905095, 3098768, 3486114, 3873460, 4648152, 5810190, 6197536, 6972228, 7746920, 8715285, 9296304, 11620380, 13944456, 15493840, 17430570, 18592608, 23240760, 27888912, 30987680, 34861140, 46481520, 55777824, 69722280, 92963040, 139444560, 278889120]

約数ペア:

[(1, 278889120), (2, 139444560), (3, 92963040), (4, 69722280), (5, 55777824), (6, 46481520), (8, 34861140), (9, 30987680), (10, 27888912), (12, 23240760), (15, 18592608), (16, 17430570), (18, 15493840), (20, 13944456), (24, 11620380), (30, 9296304), (32, 8715285), (36, 7746920), (40, 6972228), (45, 6197536), (48, 5810190), (60, 4648152), (72, 3873460), (80, 3486114), (90, 3098768), (96, 2905095), (120, 2324076), (144, 1936730), (160, 1743057), (180, 1549384), (240, 1162038), (288, 968365), (293, 951840), (360, 774692), (480, 581019), (586, 475920), (661, 421920), (720, 387346), (879, 317280), (1172, 237960), (1322, 210960), (1440, 193673), (1465, 190368), (1758, 158640), (1983, 140640), (2344, 118980), (2637, 105760), (2644, 105480), (2930, 95184), (3305, 84384), (3516, 79320), (3966, 70320), (4395, 63456), (4688, 59490), (5274, 52880), (5288, 52740), (5860, 47592), (5949, 46880), (6610, 42192), (7032, 39660), (7932, 35160), (8790, 31728), (9376, 29745), (9915, 28128), (10548, 26440), (10576, 26370), (11720, 23796), (11898, 23440), (13185, 21152), (13220, 21096), (14064, 19830), (15864, 17580)]