138768161

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 176256000

約数和(自身を除く): 37487839

約数列:

[1, 7, 17, 29, 79, 119, 203, 493, 509, 553, 1343, 2291, 3451, 3563, 8653, 9401, 14761, 16037, 38947, 40211, 60571, 103327, 250937, 272629, 281477, 683587, 1166119, 1756559, 4785109, 8162833, 19824023, 138768161]

約数ペア:

[(1, 138768161), (7, 19824023), (17, 8162833), (29, 4785109), (79, 1756559), (119, 1166119), (203, 683587), (493, 281477), (509, 272629), (553, 250937), (1343, 103327), (2291, 60571), (3451, 40211), (3563, 38947), (8653, 16037), (9401, 14761)]