20287664

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{74587}}^1$

素因数の和:74612

約数の個数: 20

約数和(自身を含む): 41620104

約数和(自身を除く): 21332440

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 74587, 149174, 298348, 596696, 1193392, 1267979, 2535958, 5071916, 10143832, 20287664]

約数ペア:

[(1, 20287664), (2, 10143832), (4, 5071916), (8, 2535958), (16, 1267979), (17, 1193392), (34, 596696), (68, 298348), (136, 149174), (272, 74587)]