20314850

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:267

約数の個数: 48

約数和(自身を含む): 39580800

約数和(自身を除く): 19265950

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 79, 139, 158, 185, 278, 370, 395, 695, 790, 925, 1390, 1850, 1975, 2923, 3475, 3950, 5143, 5846, 6950, 10286, 10981, 14615, 21962, 25715, 29230, 51430, 54905, 73075, 109810, 128575, 146150, 257150, 274525, 406297, 549050, 812594, 2031485, 4062970, 10157425, 20314850]

約数ペア:

[(1, 20314850), (2, 10157425), (5, 4062970), (10, 2031485), (25, 812594), (37, 549050), (50, 406297), (74, 274525), (79, 257150), (139, 146150), (158, 128575), (185, 109810), (278, 73075), (370, 54905), (395, 51430), (695, 29230), (790, 25715), (925, 21962), (1390, 14615), (1850, 10981), (1975, 10286), (2923, 6950), (3475, 5846), (3950, 5143)]