21770240

素因数分解:

$2^{12}\times 5^1\times {\mathrm{1063}}^1$

素因数の和:1092

約数の個数: 52

約数和(自身を含む): 52291344

約数和(自身を除く): 30521104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1063, 1280, 2048, 2126, 2560, 4096, 4252, 5120, 5315, 8504, 10240, 10630, 17008, 20480, 21260, 34016, 42520, 68032, 85040, 136064, 170080, 272128, 340160, 544256, 680320, 1088512, 1360640, 2177024, 2721280, 4354048, 5442560, 10885120, 21770240]

約数ペア:

[(1, 21770240), (2, 10885120), (4, 5442560), (5, 4354048), (8, 2721280), (10, 2177024), (16, 1360640), (20, 1088512), (32, 680320), (40, 544256), (64, 340160), (80, 272128), (128, 170080), (160, 136064), (256, 85040), (320, 68032), (512, 42520), (640, 34016), (1024, 21260), (1063, 20480), (1280, 17008), (2048, 10630), (2126, 10240), (2560, 8504), (4096, 5315), (4252, 5120)]