21421440

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{3719}}^1$

素因数の和:3744

約数の個数: 96

約数和(自身を含む): 73990800

約数和(自身を除く): 52569360

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, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 288, 320, 360, 384, 480, 576, 640, 720, 960, 1152, 1440, 1920, 2880, 3719, 5760, 7438, 11157, 14876, 18595, 22314, 29752, 33471, 37190, 44628, 55785, 59504, 66942, 74380, 89256, 111570, 119008, 133884, 148760, 167355, 178512, 223140, 238016, 267768, 297520, 334710, 357024, 446280, 476032, 535536, 595040, 669420, 714048, 892560, 1071072, 1190080, 1338840, 1428096, 1785120, 2142144, 2380160, 2677680, 3570240, 4284288, 5355360, 7140480, 10710720, 21421440]

約数ペア:

[(1, 21421440), (2, 10710720), (3, 7140480), (4, 5355360), (5, 4284288), (6, 3570240), (8, 2677680), (9, 2380160), (10, 2142144), (12, 1785120), (15, 1428096), (16, 1338840), (18, 1190080), (20, 1071072), (24, 892560), (30, 714048), (32, 669420), (36, 595040), (40, 535536), (45, 476032), (48, 446280), (60, 357024), (64, 334710), (72, 297520), (80, 267768), (90, 238016), (96, 223140), (120, 178512), (128, 167355), (144, 148760), (160, 133884), (180, 119008), (192, 111570), (240, 89256), (288, 74380), (320, 66942), (360, 59504), (384, 55785), (480, 44628), (576, 37190), (640, 33471), (720, 29752), (960, 22314), (1152, 18595), (1440, 14876), (1920, 11157), (2880, 7438), (3719, 5760)]