51720880

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4339}}^1$

素因数の和:4501

約数の個数: 40

約数和(自身を含む): 121086000

約数和(自身を除く): 69365120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 4339, 5960, 8678, 11920, 17356, 21695, 34712, 43390, 69424, 86780, 173560, 347120, 646511, 1293022, 2586044, 3232555, 5172088, 6465110, 10344176, 12930220, 25860440, 51720880]

約数ペア:

[(1, 51720880), (2, 25860440), (4, 12930220), (5, 10344176), (8, 6465110), (10, 5172088), (16, 3232555), (20, 2586044), (40, 1293022), (80, 646511), (149, 347120), (298, 173560), (596, 86780), (745, 69424), (1192, 43390), (1490, 34712), (2384, 21695), (2980, 17356), (4339, 11920), (5960, 8678)]