2641298560

素因数分解:

$2^7\times 5^1\times {\mathrm{4127029}}^1$

素因数の和:4127048

約数の個数: 32

約数和(自身を含む): 6314355900

約数和(自身を除く): 3673057340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 4127029, 8254058, 16508116, 20635145, 33016232, 41270290, 66032464, 82540580, 132064928, 165081160, 264129856, 330162320, 528259712, 660324640, 1320649280, 2641298560]

約数ペア:

[(1, 2641298560), (2, 1320649280), (4, 660324640), (5, 528259712), (8, 330162320), (10, 264129856), (16, 165081160), (20, 132064928), (32, 82540580), (40, 66032464), (64, 41270290), (80, 33016232), (128, 20635145), (160, 16508116), (320, 8254058), (640, 4127029)]