19502570

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1289}}^1$

素因数の和:1402

約数の個数: 32

約数和(自身を含む): 37616400

約数和(自身を除く): 18113830

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1289, 1513, 2578, 3026, 6445, 7565, 12890, 15130, 21913, 43826, 109565, 114721, 219130, 229442, 573605, 1147210, 1950257, 3900514, 9751285, 19502570]

約数ペア:

[(1, 19502570), (2, 9751285), (5, 3900514), (10, 1950257), (17, 1147210), (34, 573605), (85, 229442), (89, 219130), (170, 114721), (178, 109565), (445, 43826), (890, 21913), (1289, 15130), (1513, 12890), (2578, 7565), (3026, 6445)]