18686120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1069}}^1$

素因数の和:1122

約数の個数: 64

約数和(自身を含む): 46224000

約数和(自身を除く): 27537880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 380, 437, 460, 760, 874, 920, 1069, 1748, 2138, 2185, 3496, 4276, 4370, 5345, 8552, 8740, 10690, 17480, 20311, 21380, 24587, 40622, 42760, 49174, 81244, 98348, 101555, 122935, 162488, 196696, 203110, 245870, 406220, 467153, 491740, 812440, 934306, 983480, 1868612, 2335765, 3737224, 4671530, 9343060, 18686120]

約数ペア:

[(1, 18686120), (2, 9343060), (4, 4671530), (5, 3737224), (8, 2335765), (10, 1868612), (19, 983480), (20, 934306), (23, 812440), (38, 491740), (40, 467153), (46, 406220), (76, 245870), (92, 203110), (95, 196696), (115, 162488), (152, 122935), (184, 101555), (190, 98348), (230, 81244), (380, 49174), (437, 42760), (460, 40622), (760, 24587), (874, 21380), (920, 20311), (1069, 17480), (1748, 10690), (2138, 8740), (2185, 8552), (3496, 5345), (4276, 4370)]