638797874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{4549}}^1$

素因数の和:5066

約数の個数: 32

約数和(自身を含む): 1128254400

約数和(自身を除く): 489456526

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 491, 982, 4549, 5401, 6383, 9098, 10802, 12766, 50039, 59137, 70213, 100078, 118274, 140426, 650507, 1301014, 2233559, 4467118, 24569149, 29036267, 49138298, 58072534, 319398937, 638797874]

約数ペア:

[(1, 638797874), (2, 319398937), (11, 58072534), (13, 49138298), (22, 29036267), (26, 24569149), (143, 4467118), (286, 2233559), (491, 1301014), (982, 650507), (4549, 140426), (5401, 118274), (6383, 100078), (9098, 70213), (10802, 59137), (12766, 50039)]