19686368

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1279}}^1$

素因数の和:1339

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 23214112

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 74, 104, 148, 208, 296, 416, 481, 592, 962, 1184, 1279, 1924, 2558, 3848, 5116, 7696, 10232, 15392, 16627, 20464, 33254, 40928, 47323, 66508, 94646, 133016, 189292, 266032, 378584, 532064, 615199, 757168, 1230398, 1514336, 2460796, 4921592, 9843184, 19686368]

約数ペア:

[(1, 19686368), (2, 9843184), (4, 4921592), (8, 2460796), (13, 1514336), (16, 1230398), (26, 757168), (32, 615199), (37, 532064), (52, 378584), (74, 266032), (104, 189292), (148, 133016), (208, 94646), (296, 66508), (416, 47323), (481, 40928), (592, 33254), (962, 20464), (1184, 16627), (1279, 15392), (1924, 10232), (2558, 7696), (3848, 5116)]