19746020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20149}}^1$

素因数の和:20172

約数の個数: 36

約数和(自身を含む): 48239100

約数和(自身を除く): 28493080

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20149, 40298, 80596, 100745, 141043, 201490, 282086, 402980, 564172, 705215, 987301, 1410430, 1974602, 2820860, 3949204, 4936505, 9873010, 19746020]

約数ペア:

[(1, 19746020), (2, 9873010), (4, 4936505), (5, 3949204), (7, 2820860), (10, 1974602), (14, 1410430), (20, 987301), (28, 705215), (35, 564172), (49, 402980), (70, 282086), (98, 201490), (140, 141043), (196, 100745), (245, 80596), (490, 40298), (980, 20149)]