81785215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{569}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 110808000

約数和(自身を除く): 29022785

約数列:

[1, 5, 17, 19, 85, 89, 95, 323, 445, 569, 1513, 1615, 1691, 2845, 7565, 8455, 9673, 10811, 28747, 48365, 50641, 54055, 143735, 183787, 253205, 860897, 918935, 962179, 4304485, 4810895, 16357043, 81785215]

約数ペア:

[(1, 81785215), (5, 16357043), (17, 4810895), (19, 4304485), (85, 962179), (89, 918935), (95, 860897), (323, 253205), (445, 183787), (569, 143735), (1513, 54055), (1615, 50641), (1691, 48365), (2845, 28747), (7565, 10811), (8455, 9673)]