131317355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 174182400

約数和(自身を除く): 42865045

約数列:

[1, 5, 13, 65, 79, 107, 239, 395, 535, 1027, 1195, 1391, 3107, 5135, 6955, 8453, 15535, 18881, 25573, 42265, 94405, 109889, 127865, 245453, 332449, 549445, 1227265, 1662245, 2020267, 10101335, 26263471, 131317355]

約数ペア:

[(1, 131317355), (5, 26263471), (13, 10101335), (65, 2020267), (79, 1662245), (107, 1227265), (239, 549445), (395, 332449), (535, 245453), (1027, 127865), (1195, 109889), (1391, 94405), (3107, 42265), (5135, 25573), (6955, 18881), (8453, 15535)]