131230720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 132

約数和(自身を含む): 336919824

約数和(自身を除く): 205689104

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 71, 76, 80, 95, 128, 142, 152, 160, 190, 256, 284, 304, 320, 355, 361, 380, 512, 568, 608, 640, 710, 722, 760, 1024, 1136, 1216, 1280, 1349, 1420, 1444, 1520, 1805, 2272, 2432, 2560, 2698, 2840, 2888, 3040, 3610, 4544, 4864, 5120, 5396, 5680, 5776, 6080, 6745, 7220, 9088, 9728, 10792, 11360, 11552, 12160, 13490, 14440, 18176, 19456, 21584, 22720, 23104, 24320, 25631, 26980, 28880, 36352, 43168, 45440, 46208, 48640, 51262, 53960, 57760, 72704, 86336, 90880, 92416, 97280, 102524, 107920, 115520, 128155, 172672, 181760, 184832, 205048, 215840, 231040, 256310, 345344, 363520, 369664, 410096, 431680, 462080, 512620, 690688, 820192, 863360, 924160, 1025240, 1381376, 1640384, 1726720, 1848320, 2050480, 3280768, 3453440, 4100960, 6561536, 6906880, 8201920, 13123072, 16403840, 26246144, 32807680, 65615360, 131230720]

約数ペア:

[(1, 131230720), (2, 65615360), (4, 32807680), (5, 26246144), (8, 16403840), (10, 13123072), (16, 8201920), (19, 6906880), (20, 6561536), (32, 4100960), (38, 3453440), (40, 3280768), (64, 2050480), (71, 1848320), (76, 1726720), (80, 1640384), (95, 1381376), (128, 1025240), (142, 924160), (152, 863360), (160, 820192), (190, 690688), (256, 512620), (284, 462080), (304, 431680), (320, 410096), (355, 369664), (361, 363520), (380, 345344), (512, 256310), (568, 231040), (608, 215840), (640, 205048), (710, 184832), (722, 181760), (760, 172672), (1024, 128155), (1136, 115520), (1216, 107920), (1280, 102524), (1349, 97280), (1420, 92416), (1444, 90880), (1520, 86336), (1805, 72704), (2272, 57760), (2432, 53960), (2560, 51262), (2698, 48640), (2840, 46208), (2888, 45440), (3040, 43168), (3610, 36352), (4544, 28880), (4864, 26980), (5120, 25631), (5396, 24320), (5680, 23104), (5776, 22720), (6080, 21584), (6745, 19456), (7220, 18176), (9088, 14440), (9728, 13490), (10792, 12160), (11360, 11552)]