131211520

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9319}}^1$

素因数の和:9351

約数の個数: 72

約数和(自身を含む): 342901440

約数和(自身を除く): 211689920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 9319, 14080, 18638, 37276, 46595, 74552, 93190, 102509, 149104, 186380, 205018, 298208, 372760, 410036, 512545, 596416, 745520, 820072, 1025090, 1192832, 1491040, 1640144, 2050180, 2385664, 2982080, 3280288, 4100360, 5964160, 6560576, 8200720, 11928320, 13121152, 16401440, 26242304, 32802880, 65605760, 131211520]

約数ペア:

[(1, 131211520), (2, 65605760), (4, 32802880), (5, 26242304), (8, 16401440), (10, 13121152), (11, 11928320), (16, 8200720), (20, 6560576), (22, 5964160), (32, 4100360), (40, 3280288), (44, 2982080), (55, 2385664), (64, 2050180), (80, 1640144), (88, 1491040), (110, 1192832), (128, 1025090), (160, 820072), (176, 745520), (220, 596416), (256, 512545), (320, 410036), (352, 372760), (440, 298208), (640, 205018), (704, 186380), (880, 149104), (1280, 102509), (1408, 93190), (1760, 74552), (2816, 46595), (3520, 37276), (7040, 18638), (9319, 14080)]