20727808

素因数分解:

$2^{11}\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 42997500

約数和(自身を除く): 22269692

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 349, 464, 512, 698, 928, 1024, 1396, 1856, 2048, 2792, 3712, 5584, 7424, 10121, 11168, 14848, 20242, 22336, 29696, 40484, 44672, 59392, 80968, 89344, 161936, 178688, 323872, 357376, 647744, 714752, 1295488, 2590976, 5181952, 10363904, 20727808]

約数ペア:

[(1, 20727808), (2, 10363904), (4, 5181952), (8, 2590976), (16, 1295488), (29, 714752), (32, 647744), (58, 357376), (64, 323872), (116, 178688), (128, 161936), (232, 89344), (256, 80968), (349, 59392), (464, 44672), (512, 40484), (698, 29696), (928, 22336), (1024, 20242), (1396, 14848), (1856, 11168), (2048, 10121), (2792, 7424), (3712, 5584)]