155815520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{139121}}^1$

素因数の和:139143

約数の個数: 48

約数和(自身を含む): 420704928

約数和(自身を除く): 264889408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 139121, 278242, 556484, 695605, 973847, 1112968, 1391210, 1947694, 2225936, 2782420, 3895388, 4451872, 4869235, 5564840, 7790776, 9738470, 11129680, 15581552, 19476940, 22259360, 31163104, 38953880, 77907760, 155815520]

約数ペア:

[(1, 155815520), (2, 77907760), (4, 38953880), (5, 31163104), (7, 22259360), (8, 19476940), (10, 15581552), (14, 11129680), (16, 9738470), (20, 7790776), (28, 5564840), (32, 4869235), (35, 4451872), (40, 3895388), (56, 2782420), (70, 2225936), (80, 1947694), (112, 1391210), (140, 1112968), (160, 973847), (224, 695605), (280, 556484), (560, 278242), (1120, 139121)]