1639856

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{907}}^1$

素因数の和:1028

約数の個数: 20

約数和(自身を含む): 3208872

約数和(自身を除く): 1569016

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 907, 1808, 1814, 3628, 7256, 14512, 102491, 204982, 409964, 819928, 1639856]

約数ペア:

[(1, 1639856), (2, 819928), (4, 409964), (8, 204982), (16, 102491), (113, 14512), (226, 7256), (452, 3628), (904, 1814), (907, 1808)]