20328872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 22853848

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 67, 68, 92, 97, 134, 136, 184, 194, 268, 388, 391, 536, 776, 782, 1139, 1541, 1564, 1649, 2231, 2278, 3082, 3128, 3298, 4462, 4556, 6164, 6499, 6596, 8924, 9112, 12328, 12998, 13192, 17848, 25996, 26197, 37927, 51992, 52394, 75854, 104788, 110483, 149477, 151708, 209576, 220966, 298954, 303416, 441932, 597908, 883864, 1195816, 2541109, 5082218, 10164436, 20328872]

約数ペア:

[(1, 20328872), (2, 10164436), (4, 5082218), (8, 2541109), (17, 1195816), (23, 883864), (34, 597908), (46, 441932), (67, 303416), (68, 298954), (92, 220966), (97, 209576), (134, 151708), (136, 149477), (184, 110483), (194, 104788), (268, 75854), (388, 52394), (391, 51992), (536, 37927), (776, 26197), (782, 25996), (1139, 17848), (1541, 13192), (1564, 12998), (1649, 12328), (2231, 9112), (2278, 8924), (3082, 6596), (3128, 6499), (3298, 6164), (4462, 4556)]