51474540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{65993}}^1$

素因数の和:66018

約数の個数: 48

約数和(自身を含む): 155217888

約数和(自身を除く): 103743348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 65993, 131986, 197979, 263972, 329965, 395958, 659930, 791916, 857909, 989895, 1319860, 1715818, 1979790, 2573727, 3431636, 3959580, 4289545, 5147454, 8579090, 10294908, 12868635, 17158180, 25737270, 51474540]

約数ペア:

[(1, 51474540), (2, 25737270), (3, 17158180), (4, 12868635), (5, 10294908), (6, 8579090), (10, 5147454), (12, 4289545), (13, 3959580), (15, 3431636), (20, 2573727), (26, 1979790), (30, 1715818), (39, 1319860), (52, 989895), (60, 857909), (65, 791916), (78, 659930), (130, 395958), (156, 329965), (195, 263972), (260, 197979), (390, 131986), (780, 65993)]