4278440

素因数分解:

$2^3\times 5^1\times {\mathrm{106961}}^1$

素因数の和:106972

約数の個数: 16

約数和(自身を含む): 9626580

約数和(自身を除く): 5348140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 106961, 213922, 427844, 534805, 855688, 1069610, 2139220, 4278440]

約数ペア:

[(1, 4278440), (2, 2139220), (4, 1069610), (5, 855688), (8, 534805), (10, 427844), (20, 213922), (40, 106961)]