389186785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3989}}^1$

素因数の和:4105

約数の個数: 32

約数和(自身を含む): 536256000

約数和(自身を除く): 147069215

約数列:

[1, 5, 13, 19, 65, 79, 95, 247, 395, 1027, 1235, 1501, 3989, 5135, 7505, 19513, 19945, 51857, 75791, 97565, 259285, 315131, 378955, 985283, 1575655, 4096703, 4926415, 5987489, 20483515, 29937445, 77837357, 389186785]

約数ペア:

[(1, 389186785), (5, 77837357), (13, 29937445), (19, 20483515), (65, 5987489), (79, 4926415), (95, 4096703), (247, 1575655), (395, 985283), (1027, 378955), (1235, 315131), (1501, 259285), (3989, 97565), (5135, 75791), (7505, 51857), (19513, 19945)]