2721280

素因数分解:

$2^9\times 5^1\times {\mathrm{1063}}^1$

素因数の和:1086

約数の個数: 40

約数和(自身を含む): 6530832

約数和(自身を除く): 3809552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1063, 1280, 2126, 2560, 4252, 5315, 8504, 10630, 17008, 21260, 34016, 42520, 68032, 85040, 136064, 170080, 272128, 340160, 544256, 680320, 1360640, 2721280]

約数ペア:

[(1, 2721280), (2, 1360640), (4, 680320), (5, 544256), (8, 340160), (10, 272128), (16, 170080), (20, 136064), (32, 85040), (40, 68032), (64, 42520), (80, 34016), (128, 21260), (160, 17008), (256, 10630), (320, 8504), (512, 5315), (640, 4252), (1063, 2560), (1280, 2126)]