28701890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{787}}^1$

素因数の和:1322

約数の個数: 32

約数和(自身を含む): 59232384

約数和(自身を除く): 30530494

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 521, 787, 1042, 1574, 2605, 3647, 3935, 5210, 5509, 7294, 7870, 11018, 18235, 27545, 36470, 55090, 410027, 820054, 2050135, 2870189, 4100270, 5740378, 14350945, 28701890]

約数ペア:

[(1, 28701890), (2, 14350945), (5, 5740378), (7, 4100270), (10, 2870189), (14, 2050135), (35, 820054), (70, 410027), (521, 55090), (787, 36470), (1042, 27545), (1574, 18235), (2605, 11018), (3647, 7870), (3935, 7294), (5210, 5509)]