164640905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{563}}^1$

素因数の和:1001

約数の個数: 32

約数和(自身を含む): 233089920

約数和(自身を除く): 68449015

約数列:

[1, 5, 11, 13, 55, 65, 143, 409, 563, 715, 2045, 2815, 4499, 5317, 6193, 7319, 22495, 26585, 30965, 36595, 58487, 80509, 230267, 292435, 402545, 1151335, 2532937, 2993471, 12664685, 14967355, 32928181, 164640905]

約数ペア:

[(1, 164640905), (5, 32928181), (11, 14967355), (13, 12664685), (55, 2993471), (65, 2532937), (143, 1151335), (409, 402545), (563, 292435), (715, 230267), (2045, 80509), (2815, 58487), (4499, 36595), (5317, 30965), (6193, 26585), (7319, 22495)]