20017704

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 62346240

約数和(自身を除く): 42328536

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 43, 51, 56, 68, 84, 86, 102, 119, 129, 136, 163, 168, 172, 204, 238, 258, 301, 326, 344, 357, 408, 476, 489, 516, 602, 652, 714, 731, 903, 952, 978, 1032, 1141, 1204, 1304, 1428, 1462, 1806, 1956, 2193, 2282, 2408, 2771, 2856, 2924, 3423, 3612, 3912, 4386, 4564, 5117, 5542, 5848, 6846, 7009, 7224, 8313, 8772, 9128, 10234, 11084, 13692, 14018, 15351, 16626, 17544, 19397, 20468, 21027, 22168, 27384, 28036, 30702, 33252, 38794, 40936, 42054, 49063, 56072, 58191, 61404, 66504, 77588, 84108, 98126, 116382, 119153, 122808, 147189, 155176, 168216, 196252, 232764, 238306, 294378, 357459, 392504, 465528, 476612, 588756, 714918, 834071, 953224, 1177512, 1429836, 1668142, 2502213, 2859672, 3336284, 5004426, 6672568, 10008852, 20017704]

約数ペア:

[(1, 20017704), (2, 10008852), (3, 6672568), (4, 5004426), (6, 3336284), (7, 2859672), (8, 2502213), (12, 1668142), (14, 1429836), (17, 1177512), (21, 953224), (24, 834071), (28, 714918), (34, 588756), (42, 476612), (43, 465528), (51, 392504), (56, 357459), (68, 294378), (84, 238306), (86, 232764), (102, 196252), (119, 168216), (129, 155176), (136, 147189), (163, 122808), (168, 119153), (172, 116382), (204, 98126), (238, 84108), (258, 77588), (301, 66504), (326, 61404), (344, 58191), (357, 56072), (408, 49063), (476, 42054), (489, 40936), (516, 38794), (602, 33252), (652, 30702), (714, 28036), (731, 27384), (903, 22168), (952, 21027), (978, 20468), (1032, 19397), (1141, 17544), (1204, 16626), (1304, 15351), (1428, 14018), (1462, 13692), (1806, 11084), (1956, 10234), (2193, 9128), (2282, 8772), (2408, 8313), (2771, 7224), (2856, 7009), (2924, 6846), (3423, 5848), (3612, 5542), (3912, 5117), (4386, 4564)]