19999512

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{929}}^1$

素因数の和:977

約数の個数: 96

約数和(自身を含む): 60933600

約数和(自身を除く): 40934088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 36, 39, 46, 52, 69, 72, 78, 92, 104, 117, 138, 156, 184, 207, 234, 276, 299, 312, 414, 468, 552, 598, 828, 897, 929, 936, 1196, 1656, 1794, 1858, 2392, 2691, 2787, 3588, 3716, 5382, 5574, 7176, 7432, 8361, 10764, 11148, 12077, 16722, 21367, 21528, 22296, 24154, 33444, 36231, 42734, 48308, 64101, 66888, 72462, 85468, 96616, 108693, 128202, 144924, 170936, 192303, 217386, 256404, 277771, 289848, 384606, 434772, 512808, 555542, 769212, 833313, 869544, 1111084, 1538424, 1666626, 2222168, 2499939, 3333252, 4999878, 6666504, 9999756, 19999512]

約数ペア:

[(1, 19999512), (2, 9999756), (3, 6666504), (4, 4999878), (6, 3333252), (8, 2499939), (9, 2222168), (12, 1666626), (13, 1538424), (18, 1111084), (23, 869544), (24, 833313), (26, 769212), (36, 555542), (39, 512808), (46, 434772), (52, 384606), (69, 289848), (72, 277771), (78, 256404), (92, 217386), (104, 192303), (117, 170936), (138, 144924), (156, 128202), (184, 108693), (207, 96616), (234, 85468), (276, 72462), (299, 66888), (312, 64101), (414, 48308), (468, 42734), (552, 36231), (598, 33444), (828, 24154), (897, 22296), (929, 21528), (936, 21367), (1196, 16722), (1656, 12077), (1794, 11148), (1858, 10764), (2392, 8361), (2691, 7432), (2787, 7176), (3588, 5574), (3716, 5382)]