20846464

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 44382240

約数和(自身を除く): 23535776

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 73, 92, 97, 128, 146, 184, 194, 292, 368, 388, 584, 736, 776, 1168, 1472, 1552, 1679, 2231, 2336, 2944, 3104, 3358, 4462, 4672, 6208, 6716, 7081, 8924, 9344, 12416, 13432, 14162, 17848, 26864, 28324, 35696, 53728, 56648, 71392, 107456, 113296, 142784, 162863, 214912, 226592, 285568, 325726, 453184, 651452, 906368, 1302904, 2605808, 5211616, 10423232, 20846464]

約数ペア:

[(1, 20846464), (2, 10423232), (4, 5211616), (8, 2605808), (16, 1302904), (23, 906368), (32, 651452), (46, 453184), (64, 325726), (73, 285568), (92, 226592), (97, 214912), (128, 162863), (146, 142784), (184, 113296), (194, 107456), (292, 71392), (368, 56648), (388, 53728), (584, 35696), (736, 28324), (776, 26864), (1168, 17848), (1472, 14162), (1552, 13432), (1679, 12416), (2231, 9344), (2336, 8924), (2944, 7081), (3104, 6716), (3358, 6208), (4462, 4672)]