1257965720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{25301}}^1$

素因数の和:25436

約数の個数: 64

約数和(自身を含む): 3115182240

約数和(自身を除く): 1857216520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 113, 220, 226, 440, 452, 565, 904, 1130, 1243, 2260, 2486, 4520, 4972, 6215, 9944, 12430, 24860, 25301, 49720, 50602, 101204, 126505, 202408, 253010, 278311, 506020, 556622, 1012040, 1113244, 1391555, 2226488, 2783110, 2859013, 5566220, 5718026, 11132440, 11436052, 14295065, 22872104, 28590130, 31449143, 57180260, 62898286, 114360520, 125796572, 157245715, 251593144, 314491430, 628982860, 1257965720]

約数ペア:

[(1, 1257965720), (2, 628982860), (4, 314491430), (5, 251593144), (8, 157245715), (10, 125796572), (11, 114360520), (20, 62898286), (22, 57180260), (40, 31449143), (44, 28590130), (55, 22872104), (88, 14295065), (110, 11436052), (113, 11132440), (220, 5718026), (226, 5566220), (440, 2859013), (452, 2783110), (565, 2226488), (904, 1391555), (1130, 1113244), (1243, 1012040), (2260, 556622), (2486, 506020), (4520, 278311), (4972, 253010), (6215, 202408), (9944, 126505), (12430, 101204), (24860, 50602), (25301, 49720)]