87649520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{557}}^1$

素因数の和:858

約数の個数: 80

約数和(自身を含む): 234145728

約数和(自身を除く): 146496208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 281, 557, 560, 562, 1114, 1124, 1405, 1967, 2228, 2248, 2785, 2810, 3899, 3934, 4456, 4496, 5570, 5620, 7798, 7868, 8912, 9835, 11140, 11240, 15596, 15736, 19495, 19670, 22280, 22480, 31192, 31472, 38990, 39340, 44560, 62384, 77980, 78680, 155960, 156517, 157360, 311920, 313034, 626068, 782585, 1095619, 1252136, 1565170, 2191238, 2504272, 3130340, 4382476, 5478095, 6260680, 8764952, 10956190, 12521360, 17529904, 21912380, 43824760, 87649520]

約数ペア:

[(1, 87649520), (2, 43824760), (4, 21912380), (5, 17529904), (7, 12521360), (8, 10956190), (10, 8764952), (14, 6260680), (16, 5478095), (20, 4382476), (28, 3130340), (35, 2504272), (40, 2191238), (56, 1565170), (70, 1252136), (80, 1095619), (112, 782585), (140, 626068), (280, 313034), (281, 311920), (557, 157360), (560, 156517), (562, 155960), (1114, 78680), (1124, 77980), (1405, 62384), (1967, 44560), (2228, 39340), (2248, 38990), (2785, 31472), (2810, 31192), (3899, 22480), (3934, 22280), (4456, 19670), (4496, 19495), (5570, 15736), (5620, 15596), (7798, 11240), (7868, 11140), (8912, 9835)]