291249712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2657}}^1$

素因数の和:2726

約数の個数: 80

約数和(自身を含む): 664457472

約数和(自身を除く): 373207760

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 208, 221, 248, 272, 403, 442, 496, 527, 806, 884, 1054, 1612, 1768, 2108, 2657, 3224, 3536, 4216, 5314, 6448, 6851, 8432, 10628, 13702, 21256, 27404, 34541, 42512, 45169, 54808, 69082, 82367, 90338, 109616, 138164, 164734, 180676, 276328, 329468, 361352, 552656, 587197, 658936, 722704, 1070771, 1174394, 1317872, 1400239, 2141542, 2348788, 2800478, 4283084, 4697576, 5600956, 8566168, 9395152, 11201912, 17132336, 18203107, 22403824, 36406214, 72812428, 145624856, 291249712]

約数ペア:

[(1, 291249712), (2, 145624856), (4, 72812428), (8, 36406214), (13, 22403824), (16, 18203107), (17, 17132336), (26, 11201912), (31, 9395152), (34, 8566168), (52, 5600956), (62, 4697576), (68, 4283084), (104, 2800478), (124, 2348788), (136, 2141542), (208, 1400239), (221, 1317872), (248, 1174394), (272, 1070771), (403, 722704), (442, 658936), (496, 587197), (527, 552656), (806, 361352), (884, 329468), (1054, 276328), (1612, 180676), (1768, 164734), (2108, 138164), (2657, 109616), (3224, 90338), (3536, 82367), (4216, 69082), (5314, 54808), (6448, 45169), (6851, 42512), (8432, 34541), (10628, 27404), (13702, 21256)]