217712830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{8747}}^1$

素因数の和:8904

約数の個数: 32

約数和(自身を含む): 415704960

約数和(自身を除く): 197992130

約数列:

[1, 2, 5, 10, 19, 38, 95, 131, 190, 262, 655, 1310, 2489, 4978, 8747, 12445, 17494, 24890, 43735, 87470, 166193, 332386, 830965, 1145857, 1661930, 2291714, 5729285, 11458570, 21771283, 43542566, 108856415, 217712830]

約数ペア:

[(1, 217712830), (2, 108856415), (5, 43542566), (10, 21771283), (19, 11458570), (38, 5729285), (95, 2291714), (131, 1661930), (190, 1145857), (262, 830965), (655, 332386), (1310, 166193), (2489, 87470), (4978, 43735), (8747, 24890), (12445, 17494)]