217471520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{691}}^1$

素因数の和:994

約数の個数: 96

約数和(自身を含む): 590115456

約数和(自身を除く): 372643936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 281, 560, 562, 691, 1120, 1124, 1382, 1405, 1967, 2248, 2764, 2810, 3455, 3934, 4496, 4837, 5528, 5620, 6910, 7868, 8992, 9674, 9835, 11056, 11240, 13820, 15736, 19348, 19670, 22112, 22480, 24185, 27640, 31472, 38696, 39340, 44960, 48370, 55280, 62944, 77392, 78680, 96740, 110560, 154784, 157360, 193480, 194171, 314720, 386960, 388342, 773920, 776684, 970855, 1359197, 1553368, 1941710, 2718394, 3106736, 3883420, 5436788, 6213472, 6795985, 7766840, 10873576, 13591970, 15533680, 21747152, 27183940, 31067360, 43494304, 54367880, 108735760, 217471520]

約数ペア:

[(1, 217471520), (2, 108735760), (4, 54367880), (5, 43494304), (7, 31067360), (8, 27183940), (10, 21747152), (14, 15533680), (16, 13591970), (20, 10873576), (28, 7766840), (32, 6795985), (35, 6213472), (40, 5436788), (56, 3883420), (70, 3106736), (80, 2718394), (112, 1941710), (140, 1553368), (160, 1359197), (224, 970855), (280, 776684), (281, 773920), (560, 388342), (562, 386960), (691, 314720), (1120, 194171), (1124, 193480), (1382, 157360), (1405, 154784), (1967, 110560), (2248, 96740), (2764, 78680), (2810, 77392), (3455, 62944), (3934, 55280), (4496, 48370), (4837, 44960), (5528, 39340), (5620, 38696), (6910, 31472), (7868, 27640), (8992, 24185), (9674, 22480), (9835, 22112), (11056, 19670), (11240, 19348), (13820, 15736)]