78339172

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{353}}^1\times {\mathrm{509}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 139015800

約数和(自身を除く): 60676628

約数列:

[1, 2, 4, 109, 218, 353, 436, 509, 706, 1018, 1412, 2036, 38477, 55481, 76954, 110962, 153908, 179677, 221924, 359354, 718708, 19584793, 39169586, 78339172]

約数ペア:

[(1, 78339172), (2, 39169586), (4, 19584793), (109, 718708), (218, 359354), (353, 221924), (436, 179677), (509, 153908), (706, 110962), (1018, 76954), (1412, 55481), (2036, 38477)]