20166688

素因数分解:

$2^5\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 41118840

約数和(自身を除く): 20952152

約数列:

[1, 2, 4, 8, 16, 32, 73, 89, 97, 146, 178, 194, 292, 356, 388, 584, 712, 776, 1168, 1424, 1552, 2336, 2848, 3104, 6497, 7081, 8633, 12994, 14162, 17266, 25988, 28324, 34532, 51976, 56648, 69064, 103952, 113296, 138128, 207904, 226592, 276256, 630209, 1260418, 2520836, 5041672, 10083344, 20166688]

約数ペア:

[(1, 20166688), (2, 10083344), (4, 5041672), (8, 2520836), (16, 1260418), (32, 630209), (73, 276256), (89, 226592), (97, 207904), (146, 138128), (178, 113296), (194, 103952), (292, 69064), (356, 56648), (388, 51976), (584, 34532), (712, 28324), (776, 25988), (1168, 17266), (1424, 14162), (1552, 12994), (2336, 8633), (2848, 7081), (3104, 6497)]