160494820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 344010240

約数和(自身を除く): 183515420

約数列:

[1, 2, 4, 5, 10, 20, 79, 157, 158, 314, 316, 395, 628, 647, 785, 790, 1294, 1570, 1580, 2588, 3140, 3235, 6470, 12403, 12940, 24806, 49612, 51113, 62015, 101579, 102226, 124030, 203158, 204452, 248060, 255565, 406316, 507895, 511130, 1015790, 1022260, 2031580, 8024741, 16049482, 32098964, 40123705, 80247410, 160494820]

約数ペア:

[(1, 160494820), (2, 80247410), (4, 40123705), (5, 32098964), (10, 16049482), (20, 8024741), (79, 2031580), (157, 1022260), (158, 1015790), (314, 511130), (316, 507895), (395, 406316), (628, 255565), (647, 248060), (785, 204452), (790, 203158), (1294, 124030), (1570, 102226), (1580, 101579), (2588, 62015), (3140, 51113), (3235, 49612), (6470, 24806), (12403, 12940)]