640718015

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{46819}}^1$

素因数の和:46871

約数の個数: 32

約数和(自身を含む): 970859520

約数和(自身を除く): 330141505

約数列:

[1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1955, 2737, 13685, 46819, 234095, 327733, 795923, 1076837, 1638665, 3979615, 5384185, 5571461, 7537859, 18306229, 27857305, 37689295, 91531145, 128143603, 640718015]

約数ペア:

[(1, 640718015), (5, 128143603), (7, 91531145), (17, 37689295), (23, 27857305), (35, 18306229), (85, 7537859), (115, 5571461), (119, 5384185), (161, 3979615), (391, 1638665), (595, 1076837), (805, 795923), (1955, 327733), (2737, 234095), (13685, 46819)]