19580464

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71987}}^1$

素因数の和:72012

約数の個数: 20

約数和(自身を含む): 40169304

約数和(自身を除く): 20588840

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 71987, 143974, 287948, 575896, 1151792, 1223779, 2447558, 4895116, 9790232, 19580464]

約数ペア:

[(1, 19580464), (2, 9790232), (4, 4895116), (8, 2447558), (16, 1223779), (17, 1151792), (34, 575896), (68, 287948), (136, 143974), (272, 71987)]