71490020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{72949}}^1$

素因数の和:72972

約数の個数: 36

約数和(自身を含む): 174642300

約数和(自身を除く): 103152280

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 72949, 145898, 291796, 364745, 510643, 729490, 1021286, 1458980, 2042572, 2553215, 3574501, 5106430, 7149002, 10212860, 14298004, 17872505, 35745010, 71490020]

約数ペア:

[(1, 71490020), (2, 35745010), (4, 17872505), (5, 14298004), (7, 10212860), (10, 7149002), (14, 5106430), (20, 3574501), (28, 2553215), (35, 2042572), (49, 1458980), (70, 1021286), (98, 729490), (140, 510643), (196, 364745), (245, 291796), (490, 145898), (980, 72949)]