20331520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2$

素因数の和:74

約数の個数: 132

約数和(自身を含む): 56153304

約数和(自身を除く): 35821784

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 128, 152, 160, 176, 190, 209, 220, 256, 304, 320, 352, 361, 380, 418, 440, 512, 608, 640, 704, 722, 760, 836, 880, 1024, 1045, 1216, 1280, 1408, 1444, 1520, 1672, 1760, 1805, 2090, 2432, 2560, 2816, 2888, 3040, 3344, 3520, 3610, 3971, 4180, 4864, 5120, 5632, 5776, 6080, 6688, 7040, 7220, 7942, 8360, 9728, 11264, 11552, 12160, 13376, 14080, 14440, 15884, 16720, 19456, 19855, 23104, 24320, 26752, 28160, 28880, 31768, 33440, 39710, 46208, 48640, 53504, 56320, 57760, 63536, 66880, 79420, 92416, 97280, 107008, 115520, 127072, 133760, 158840, 184832, 214016, 231040, 254144, 267520, 317680, 369664, 462080, 508288, 535040, 635360, 924160, 1016576, 1070080, 1270720, 1848320, 2033152, 2541440, 4066304, 5082880, 10165760, 20331520]

約数ペア:

[(1, 20331520), (2, 10165760), (4, 5082880), (5, 4066304), (8, 2541440), (10, 2033152), (11, 1848320), (16, 1270720), (19, 1070080), (20, 1016576), (22, 924160), (32, 635360), (38, 535040), (40, 508288), (44, 462080), (55, 369664), (64, 317680), (76, 267520), (80, 254144), (88, 231040), (95, 214016), (110, 184832), (128, 158840), (152, 133760), (160, 127072), (176, 115520), (190, 107008), (209, 97280), (220, 92416), (256, 79420), (304, 66880), (320, 63536), (352, 57760), (361, 56320), (380, 53504), (418, 48640), (440, 46208), (512, 39710), (608, 33440), (640, 31768), (704, 28880), (722, 28160), (760, 26752), (836, 24320), (880, 23104), (1024, 19855), (1045, 19456), (1216, 16720), (1280, 15884), (1408, 14440), (1444, 14080), (1520, 13376), (1672, 12160), (1760, 11552), (1805, 11264), (2090, 9728), (2432, 8360), (2560, 7942), (2816, 7220), (2888, 7040), (3040, 6688), (3344, 6080), (3520, 5776), (3610, 5632), (3971, 5120), (4180, 4864)]