391408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{1439}}^1$

素因数の和:1464

約数の個数: 20

約数和(自身を含む): 803520

約数和(自身を除く): 412112

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 1439, 2878, 5756, 11512, 23024, 24463, 48926, 97852, 195704, 391408]

約数ペア:

[(1, 391408), (2, 195704), (4, 97852), (8, 48926), (16, 24463), (17, 23024), (34, 11512), (68, 5756), (136, 2878), (272, 1439)]