2021120

素因数分解:

$2^8\times 5^1\times {\mathrm{1579}}^1$

素因数の和:1600

約数の個数: 36

約数和(自身を含む): 4844280

約数和(自身を除く): 2823160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1579, 3158, 6316, 7895, 12632, 15790, 25264, 31580, 50528, 63160, 101056, 126320, 202112, 252640, 404224, 505280, 1010560, 2021120]

約数ペア:

[(1, 2021120), (2, 1010560), (4, 505280), (5, 404224), (8, 252640), (10, 202112), (16, 126320), (20, 101056), (32, 63160), (40, 50528), (64, 31580), (80, 25264), (128, 15790), (160, 12632), (256, 7895), (320, 6316), (640, 3158), (1280, 1579)]