131020180

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{60101}}^1$

素因数の和:60219

約数の個数: 24

約数和(自身を含む): 277671240

約数和(自身を除く): 146651060

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 60101, 120202, 240404, 300505, 601010, 1202020, 6551009, 13102018, 26204036, 32755045, 65510090, 131020180]

約数ペア:

[(1, 131020180), (2, 65510090), (4, 32755045), (5, 26204036), (10, 13102018), (20, 6551009), (109, 1202020), (218, 601010), (436, 300505), (545, 240404), (1090, 120202), (2180, 60101)]