388640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{347}}^1$

素因数の和:369

約数の個数: 48

約数和(自身を含む): 1052352

約数和(自身を除く): 663712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 347, 560, 694, 1120, 1388, 1735, 2429, 2776, 3470, 4858, 5552, 6940, 9716, 11104, 12145, 13880, 19432, 24290, 27760, 38864, 48580, 55520, 77728, 97160, 194320, 388640]

約数ペア:

[(1, 388640), (2, 194320), (4, 97160), (5, 77728), (7, 55520), (8, 48580), (10, 38864), (14, 27760), (16, 24290), (20, 19432), (28, 13880), (32, 12145), (35, 11104), (40, 9716), (56, 6940), (70, 5552), (80, 4858), (112, 3470), (140, 2776), (160, 2429), (224, 1735), (280, 1388), (347, 1120), (560, 694)]