20400714

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 48833280

約数和(自身を除く): 28432566

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 71, 102, 142, 153, 213, 306, 313, 426, 459, 626, 639, 918, 939, 1207, 1278, 1878, 1917, 2414, 2817, 3621, 3834, 5321, 5634, 7242, 8451, 10642, 10863, 15963, 16902, 21726, 22223, 31926, 32589, 44446, 47889, 65178, 66669, 95778, 133338, 143667, 200007, 287334, 377791, 400014, 600021, 755582, 1133373, 1200042, 2266746, 3400119, 6800238, 10200357, 20400714]

約数ペア:

[(1, 20400714), (2, 10200357), (3, 6800238), (6, 3400119), (9, 2266746), (17, 1200042), (18, 1133373), (27, 755582), (34, 600021), (51, 400014), (54, 377791), (71, 287334), (102, 200007), (142, 143667), (153, 133338), (213, 95778), (306, 66669), (313, 65178), (426, 47889), (459, 44446), (626, 32589), (639, 31926), (918, 22223), (939, 21726), (1207, 16902), (1278, 15963), (1878, 10863), (1917, 10642), (2414, 8451), (2817, 7242), (3621, 5634), (3834, 5321)]