18964144

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1777}}^1$

素因数の和:1837

約数の個数: 40

約数和(自身を含む): 39684960

約数和(自身を除く): 20720816

約数列:

[1, 2, 4, 8, 16, 23, 29, 46, 58, 92, 116, 184, 232, 368, 464, 667, 1334, 1777, 2668, 3554, 5336, 7108, 10672, 14216, 28432, 40871, 51533, 81742, 103066, 163484, 206132, 326968, 412264, 653936, 824528, 1185259, 2370518, 4741036, 9482072, 18964144]

約数ペア:

[(1, 18964144), (2, 9482072), (4, 4741036), (8, 2370518), (16, 1185259), (23, 824528), (29, 653936), (46, 412264), (58, 326968), (92, 206132), (116, 163484), (184, 103066), (232, 81742), (368, 51533), (464, 40871), (667, 28432), (1334, 14216), (1777, 10672), (2668, 7108), (3554, 5336)]