281429408

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 624314880

約数和(自身を除く): 342885472

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 139, 157, 208, 248, 278, 314, 403, 416, 496, 556, 628, 806, 992, 1112, 1256, 1612, 1807, 2041, 2224, 2512, 3224, 3614, 4082, 4309, 4448, 4867, 5024, 6448, 7228, 8164, 8618, 9734, 12896, 14456, 16328, 17236, 19468, 21823, 28912, 32656, 34472, 38936, 43646, 56017, 57824, 63271, 65312, 68944, 77872, 87292, 112034, 126542, 137888, 155744, 174584, 224068, 253084, 283699, 349168, 448136, 506168, 567398, 676513, 698336, 896272, 1012336, 1134796, 1353026, 1792544, 2024672, 2269592, 2706052, 4539184, 5412104, 8794669, 9078368, 10824208, 17589338, 21648416, 35178676, 70357352, 140714704, 281429408]

約数ペア:

[(1, 281429408), (2, 140714704), (4, 70357352), (8, 35178676), (13, 21648416), (16, 17589338), (26, 10824208), (31, 9078368), (32, 8794669), (52, 5412104), (62, 4539184), (104, 2706052), (124, 2269592), (139, 2024672), (157, 1792544), (208, 1353026), (248, 1134796), (278, 1012336), (314, 896272), (403, 698336), (416, 676513), (496, 567398), (556, 506168), (628, 448136), (806, 349168), (992, 283699), (1112, 253084), (1256, 224068), (1612, 174584), (1807, 155744), (2041, 137888), (2224, 126542), (2512, 112034), (3224, 87292), (3614, 77872), (4082, 68944), (4309, 65312), (4448, 63271), (4867, 57824), (5024, 56017), (6448, 43646), (7228, 38936), (8164, 34472), (8618, 32656), (9734, 28912), (12896, 21823), (14456, 19468), (16328, 17236)]