211345280

素因数分解:

$2^7\times 5^1\times {\mathrm{330227}}^1$

素因数の和:330246

約数の個数: 32

約数和(自身を含む): 505248840

約数和(自身を除く): 293903560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 330227, 660454, 1320908, 1651135, 2641816, 3302270, 5283632, 6604540, 10567264, 13209080, 21134528, 26418160, 42269056, 52836320, 105672640, 211345280]

約数ペア:

[(1, 211345280), (2, 105672640), (4, 52836320), (5, 42269056), (8, 26418160), (10, 21134528), (16, 13209080), (20, 10567264), (32, 6604540), (40, 5283632), (64, 3302270), (80, 2641816), (128, 1651135), (160, 1320908), (320, 660454), (640, 330227)]