2160640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{211}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 5208840

約数和(自身を除く): 3048200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 256, 320, 422, 512, 640, 844, 1024, 1055, 1280, 1688, 2048, 2110, 2560, 3376, 4220, 5120, 6752, 8440, 10240, 13504, 16880, 27008, 33760, 54016, 67520, 108032, 135040, 216064, 270080, 432128, 540160, 1080320, 2160640]

約数ペア:

[(1, 2160640), (2, 1080320), (4, 540160), (5, 432128), (8, 270080), (10, 216064), (16, 135040), (20, 108032), (32, 67520), (40, 54016), (64, 33760), (80, 27008), (128, 16880), (160, 13504), (211, 10240), (256, 8440), (320, 6752), (422, 5120), (512, 4220), (640, 3376), (844, 2560), (1024, 2110), (1055, 2048), (1280, 1688)]