18258256

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:451

約数の個数: 40

約数和(自身を含む): 36926208

約数和(自身を除く): 18667952

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 131, 248, 262, 281, 496, 524, 562, 1048, 1124, 2096, 2248, 4061, 4496, 8122, 8711, 16244, 17422, 32488, 34844, 36811, 64976, 69688, 73622, 139376, 147244, 294488, 588976, 1141141, 2282282, 4564564, 9129128, 18258256]

約数ペア:

[(1, 18258256), (2, 9129128), (4, 4564564), (8, 2282282), (16, 1141141), (31, 588976), (62, 294488), (124, 147244), (131, 139376), (248, 73622), (262, 69688), (281, 64976), (496, 36811), (524, 34844), (562, 32488), (1048, 17422), (1124, 16244), (2096, 8711), (2248, 8122), (4061, 4496)]