1639408

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{1297}}^1$

素因数の和:1384

約数の個数: 20

約数和(自身を含む): 3219040

約数和(自身を除く): 1579632

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 1297, 2594, 5188, 10376, 20752, 102463, 204926, 409852, 819704, 1639408]

約数ペア:

[(1, 1639408), (2, 819704), (4, 409852), (8, 204926), (16, 102463), (79, 20752), (158, 10376), (316, 5188), (632, 2594), (1264, 1297)]