20968880

素因数分解:

$2^4\times 5^1\times {\mathrm{262111}}^1$

素因数の和:262124

約数の個数: 20

約数和(自身を含む): 48752832

約数和(自身を除く): 27783952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262111, 524222, 1048444, 1310555, 2096888, 2621110, 4193776, 5242220, 10484440, 20968880]

約数ペア:

[(1, 20968880), (2, 10484440), (4, 5242220), (5, 4193776), (8, 2621110), (10, 2096888), (16, 1310555), (20, 1048444), (40, 524222), (80, 262111)]