208565720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{5711}}^1$

素因数の和:5816

約数の個数: 64

約数和(自身を含む): 518192640

約数和(自身を除く): 309626920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 83, 88, 110, 166, 220, 332, 415, 440, 664, 830, 913, 1660, 1826, 3320, 3652, 4565, 5711, 7304, 9130, 11422, 18260, 22844, 28555, 36520, 45688, 57110, 62821, 114220, 125642, 228440, 251284, 314105, 474013, 502568, 628210, 948026, 1256420, 1896052, 2370065, 2512840, 3792104, 4740130, 5214143, 9480260, 10428286, 18960520, 20856572, 26070715, 41713144, 52141430, 104282860, 208565720]

約数ペア:

[(1, 208565720), (2, 104282860), (4, 52141430), (5, 41713144), (8, 26070715), (10, 20856572), (11, 18960520), (20, 10428286), (22, 9480260), (40, 5214143), (44, 4740130), (55, 3792104), (83, 2512840), (88, 2370065), (110, 1896052), (166, 1256420), (220, 948026), (332, 628210), (415, 502568), (440, 474013), (664, 314105), (830, 251284), (913, 228440), (1660, 125642), (1826, 114220), (3320, 62821), (3652, 57110), (4565, 45688), (5711, 36520), (7304, 28555), (9130, 22844), (11422, 18260)]