28778890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{411127}}^1$

素因数の和:411141

約数の個数: 16

約数和(自身を含む): 59202432

約数和(自身を除く): 30423542

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 411127, 822254, 2055635, 2877889, 4111270, 5755778, 14389445, 28778890]

約数ペア:

[(1, 28778890), (2, 14389445), (5, 5755778), (7, 4111270), (10, 2877889), (14, 2055635), (35, 822254), (70, 411127)]