20120457970

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3138917}}^1$

素因数の和:3139565

約数の個数: 16

約数和(自身を含む): 36273336408

約数和(自身を除く): 16152878438

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 6410, 3138917, 6277834, 15694585, 31389170, 2012045797, 4024091594, 10060228985, 20120457970]

約数ペア:

[(1, 20120457970), (2, 10060228985), (5, 4024091594), (10, 2012045797), (641, 31389170), (1282, 15694585), (3205, 6277834), (6410, 3138917)]