18147736

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 38880000

約数和(自身を除く): 20732264

約数列:

[1, 2, 4, 8, 19, 23, 29, 38, 46, 58, 76, 92, 116, 152, 179, 184, 232, 358, 437, 551, 667, 716, 874, 1102, 1334, 1432, 1748, 2204, 2668, 3401, 3496, 4117, 4408, 5191, 5336, 6802, 8234, 10382, 12673, 13604, 16468, 20764, 25346, 27208, 32936, 41528, 50692, 78223, 98629, 101384, 119393, 156446, 197258, 238786, 312892, 394516, 477572, 625784, 789032, 955144, 2268467, 4536934, 9073868, 18147736]

約数ペア:

[(1, 18147736), (2, 9073868), (4, 4536934), (8, 2268467), (19, 955144), (23, 789032), (29, 625784), (38, 477572), (46, 394516), (58, 312892), (76, 238786), (92, 197258), (116, 156446), (152, 119393), (179, 101384), (184, 98629), (232, 78223), (358, 50692), (437, 41528), (551, 32936), (667, 27208), (716, 25346), (874, 20764), (1102, 16468), (1334, 13604), (1432, 12673), (1748, 10382), (2204, 8234), (2668, 6802), (3401, 5336), (3496, 5191), (4117, 4408)]