639647512

素因数分解:

$2^3\times 7^1\times {\mathrm{1721}}^1\times {\mathrm{6637}}^1$

素因数の和:8371

約数の個数: 32

約数和(自身を含む): 1371676320

約数和(自身を除く): 732028808

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1721, 3442, 6637, 6884, 12047, 13274, 13768, 24094, 26548, 46459, 48188, 53096, 92918, 96376, 185836, 371672, 11422277, 22844554, 45689108, 79955939, 91378216, 159911878, 319823756, 639647512]

約数ペア:

[(1, 639647512), (2, 319823756), (4, 159911878), (7, 91378216), (8, 79955939), (14, 45689108), (28, 22844554), (56, 11422277), (1721, 371672), (3442, 185836), (6637, 96376), (6884, 92918), (12047, 53096), (13274, 48188), (13768, 46459), (24094, 26548)]