20199982070

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{881}}^1\times {\mathrm{99689}}^1$

素因数の和:100600

約数の個数: 32

約数和(自身を含む): 37984282560

約数和(自身を除く): 17784300490

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 881, 1762, 4405, 8810, 20263, 40526, 99689, 101315, 199378, 202630, 498445, 996890, 2292847, 4585694, 11464235, 22928470, 87826009, 175652018, 439130045, 878260090, 2019998207, 4039996414, 10099991035, 20199982070]

約数ペア:

[(1, 20199982070), (2, 10099991035), (5, 4039996414), (10, 2019998207), (23, 878260090), (46, 439130045), (115, 175652018), (230, 87826009), (881, 22928470), (1762, 11464235), (4405, 4585694), (8810, 2292847), (20263, 996890), (40526, 498445), (99689, 202630), (101315, 199378)]