281216640

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{983}}^1$

素因数の和:1154

約数の個数: 128

約数和(自身を含む): 903312000

約数和(自身を除く): 622095360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 149, 160, 192, 240, 298, 320, 384, 447, 480, 596, 640, 745, 894, 960, 983, 1192, 1490, 1788, 1920, 1966, 2235, 2384, 2949, 2980, 3576, 3932, 4470, 4768, 4915, 5898, 5960, 7152, 7864, 8940, 9536, 9830, 11796, 11920, 14304, 14745, 15728, 17880, 19072, 19660, 23592, 23840, 28608, 29490, 31456, 35760, 39320, 47184, 47680, 57216, 58980, 62912, 71520, 78640, 94368, 95360, 117960, 125824, 143040, 146467, 157280, 188736, 235920, 286080, 292934, 314560, 377472, 439401, 471840, 585868, 629120, 732335, 878802, 943680, 1171736, 1464670, 1757604, 1887360, 2197005, 2343472, 2929340, 3515208, 4394010, 4686944, 5858680, 7030416, 8788020, 9373888, 11717360, 14060832, 17576040, 18747776, 23434720, 28121664, 35152080, 46869440, 56243328, 70304160, 93738880, 140608320, 281216640]

約数ペア:

[(1, 281216640), (2, 140608320), (3, 93738880), (4, 70304160), (5, 56243328), (6, 46869440), (8, 35152080), (10, 28121664), (12, 23434720), (15, 18747776), (16, 17576040), (20, 14060832), (24, 11717360), (30, 9373888), (32, 8788020), (40, 7030416), (48, 5858680), (60, 4686944), (64, 4394010), (80, 3515208), (96, 2929340), (120, 2343472), (128, 2197005), (149, 1887360), (160, 1757604), (192, 1464670), (240, 1171736), (298, 943680), (320, 878802), (384, 732335), (447, 629120), (480, 585868), (596, 471840), (640, 439401), (745, 377472), (894, 314560), (960, 292934), (983, 286080), (1192, 235920), (1490, 188736), (1788, 157280), (1920, 146467), (1966, 143040), (2235, 125824), (2384, 117960), (2949, 95360), (2980, 94368), (3576, 78640), (3932, 71520), (4470, 62912), (4768, 58980), (4915, 57216), (5898, 47680), (5960, 47184), (7152, 39320), (7864, 35760), (8940, 31456), (9536, 29490), (9830, 28608), (11796, 23840), (11920, 23592), (14304, 19660), (14745, 19072), (15728, 17880)]