18123376

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 36716400

約数和(自身を除く): 18593024

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 139, 232, 278, 281, 464, 556, 562, 1112, 1124, 2224, 2248, 4031, 4496, 8062, 8149, 16124, 16298, 32248, 32596, 39059, 64496, 65192, 78118, 130384, 156236, 312472, 624944, 1132711, 2265422, 4530844, 9061688, 18123376]

約数ペア:

[(1, 18123376), (2, 9061688), (4, 4530844), (8, 2265422), (16, 1132711), (29, 624944), (58, 312472), (116, 156236), (139, 130384), (232, 78118), (278, 65192), (281, 64496), (464, 39059), (556, 32596), (562, 32248), (1112, 16298), (1124, 16124), (2224, 8149), (2248, 8062), (4031, 4496)]