496120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 1137600

約数和(自身を除く): 641480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 157, 158, 314, 316, 395, 628, 632, 785, 790, 1256, 1570, 1580, 3140, 3160, 6280, 12403, 24806, 49612, 62015, 99224, 124030, 248060, 496120]

約数ペア:

[(1, 496120), (2, 248060), (4, 124030), (5, 99224), (8, 62015), (10, 49612), (20, 24806), (40, 12403), (79, 6280), (157, 3160), (158, 3140), (314, 1580), (316, 1570), (395, 1256), (628, 790), (632, 785)]