18611968

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 40471200

約数和(自身を除く): 21859232

約数列:

[1, 2, 4, 8, 16, 23, 29, 32, 46, 58, 64, 92, 109, 116, 128, 184, 218, 232, 256, 368, 436, 464, 667, 736, 872, 928, 1334, 1472, 1744, 1856, 2507, 2668, 2944, 3161, 3488, 3712, 5014, 5336, 5888, 6322, 6976, 7424, 10028, 10672, 12644, 13952, 20056, 21344, 25288, 27904, 40112, 42688, 50576, 72703, 80224, 85376, 101152, 145406, 160448, 170752, 202304, 290812, 320896, 404608, 581624, 641792, 809216, 1163248, 2326496, 4652992, 9305984, 18611968]

約数ペア:

[(1, 18611968), (2, 9305984), (4, 4652992), (8, 2326496), (16, 1163248), (23, 809216), (29, 641792), (32, 581624), (46, 404608), (58, 320896), (64, 290812), (92, 202304), (109, 170752), (116, 160448), (128, 145406), (184, 101152), (218, 85376), (232, 80224), (256, 72703), (368, 50576), (436, 42688), (464, 40112), (667, 27904), (736, 25288), (872, 21344), (928, 20056), (1334, 13952), (1472, 12644), (1744, 10672), (1856, 10028), (2507, 7424), (2668, 6976), (2944, 6322), (3161, 5888), (3488, 5336), (3712, 5014)]