1217965

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:141

約数の個数: 32

約数和(自身を含む): 1866240

約数和(自身を除く): 648275

約数列:

[1, 5, 7, 17, 23, 35, 85, 89, 115, 119, 161, 391, 445, 595, 623, 805, 1513, 1955, 2047, 2737, 3115, 7565, 10235, 10591, 13685, 14329, 34799, 52955, 71645, 173995, 243593, 1217965]

約数ペア:

[(1, 1217965), (5, 243593), (7, 173995), (17, 71645), (23, 52955), (35, 34799), (85, 14329), (89, 13685), (115, 10591), (119, 10235), (161, 7565), (391, 3115), (445, 2737), (595, 2047), (623, 1955), (805, 1513)]