20995872

素因数分解:

$2^5\times 3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:330

約数の個数: 96

約数和(自身を含む): 59294592

約数和(自身を除く): 38298720

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 37, 46, 48, 69, 74, 92, 96, 111, 138, 148, 184, 222, 257, 276, 296, 368, 444, 514, 552, 592, 736, 771, 851, 888, 1028, 1104, 1184, 1542, 1702, 1776, 2056, 2208, 2553, 3084, 3404, 3552, 4112, 5106, 5911, 6168, 6808, 8224, 9509, 10212, 11822, 12336, 13616, 17733, 19018, 20424, 23644, 24672, 27232, 28527, 35466, 38036, 40848, 47288, 57054, 70932, 76072, 81696, 94576, 114108, 141864, 152144, 189152, 218707, 228216, 283728, 304288, 437414, 456432, 567456, 656121, 874828, 912864, 1312242, 1749656, 2624484, 3499312, 5248968, 6998624, 10497936, 20995872]

約数ペア:

[(1, 20995872), (2, 10497936), (3, 6998624), (4, 5248968), (6, 3499312), (8, 2624484), (12, 1749656), (16, 1312242), (23, 912864), (24, 874828), (32, 656121), (37, 567456), (46, 456432), (48, 437414), (69, 304288), (74, 283728), (92, 228216), (96, 218707), (111, 189152), (138, 152144), (148, 141864), (184, 114108), (222, 94576), (257, 81696), (276, 76072), (296, 70932), (368, 57054), (444, 47288), (514, 40848), (552, 38036), (592, 35466), (736, 28527), (771, 27232), (851, 24672), (888, 23644), (1028, 20424), (1104, 19018), (1184, 17733), (1542, 13616), (1702, 12336), (1776, 11822), (2056, 10212), (2208, 9509), (2553, 8224), (3084, 6808), (3404, 6168), (3552, 5911), (4112, 5106)]