18958808

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:105

約数の個数: 128

約数和(自身を含む): 46656000

約数和(自身を除く): 27697192

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 23, 29, 34, 38, 44, 46, 58, 68, 76, 88, 92, 116, 136, 152, 184, 187, 209, 232, 253, 319, 323, 374, 391, 418, 437, 493, 506, 551, 638, 646, 667, 748, 782, 836, 874, 986, 1012, 1102, 1276, 1292, 1334, 1496, 1564, 1672, 1748, 1972, 2024, 2204, 2552, 2584, 2668, 3128, 3496, 3553, 3944, 4301, 4408, 4807, 5336, 5423, 6061, 7106, 7337, 7429, 8602, 9367, 9614, 10846, 11339, 12122, 12673, 14212, 14674, 14858, 17204, 18734, 19228, 21692, 22678, 24244, 25346, 28424, 29348, 29716, 34408, 37468, 38456, 43384, 45356, 48488, 50692, 58696, 59432, 74936, 81719, 90712, 101384, 103037, 124729, 139403, 163438, 206074, 215441, 249458, 278806, 326876, 412148, 430882, 498916, 557612, 653752, 824296, 861764, 997832, 1115224, 1723528, 2369851, 4739702, 9479404, 18958808]

約数ペア:

[(1, 18958808), (2, 9479404), (4, 4739702), (8, 2369851), (11, 1723528), (17, 1115224), (19, 997832), (22, 861764), (23, 824296), (29, 653752), (34, 557612), (38, 498916), (44, 430882), (46, 412148), (58, 326876), (68, 278806), (76, 249458), (88, 215441), (92, 206074), (116, 163438), (136, 139403), (152, 124729), (184, 103037), (187, 101384), (209, 90712), (232, 81719), (253, 74936), (319, 59432), (323, 58696), (374, 50692), (391, 48488), (418, 45356), (437, 43384), (493, 38456), (506, 37468), (551, 34408), (638, 29716), (646, 29348), (667, 28424), (748, 25346), (782, 24244), (836, 22678), (874, 21692), (986, 19228), (1012, 18734), (1102, 17204), (1276, 14858), (1292, 14674), (1334, 14212), (1496, 12673), (1564, 12122), (1672, 11339), (1748, 10846), (1972, 9614), (2024, 9367), (2204, 8602), (2552, 7429), (2584, 7337), (2668, 7106), (3128, 6061), (3496, 5423), (3553, 5336), (3944, 4807), (4301, 4408)]