20615168

素因数分解:

$2^{12}\times 7^1\times {\mathrm{719}}^1$

素因数の和:750

約数の個数: 52

約数和(自身を含む): 47180160

約数和(自身を除く): 26564992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 719, 896, 1024, 1438, 1792, 2048, 2876, 3584, 4096, 5033, 5752, 7168, 10066, 11504, 14336, 20132, 23008, 28672, 40264, 46016, 80528, 92032, 161056, 184064, 322112, 368128, 644224, 736256, 1288448, 1472512, 2576896, 2945024, 5153792, 10307584, 20615168]

約数ペア:

[(1, 20615168), (2, 10307584), (4, 5153792), (7, 2945024), (8, 2576896), (14, 1472512), (16, 1288448), (28, 736256), (32, 644224), (56, 368128), (64, 322112), (112, 184064), (128, 161056), (224, 92032), (256, 80528), (448, 46016), (512, 40264), (719, 28672), (896, 23008), (1024, 20132), (1438, 14336), (1792, 11504), (2048, 10066), (2876, 7168), (3584, 5752), (4096, 5033)]