315039620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{321469}}^1$

素因数の和:321492

約数の個数: 36

約数和(自身を含む): 769599180

約数和(自身を除く): 454559560

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 321469, 642938, 1285876, 1607345, 2250283, 3214690, 4500566, 6429380, 9001132, 11251415, 15751981, 22502830, 31503962, 45005660, 63007924, 78759905, 157519810, 315039620]

約数ペア:

[(1, 315039620), (2, 157519810), (4, 78759905), (5, 63007924), (7, 45005660), (10, 31503962), (14, 22502830), (20, 15751981), (28, 11251415), (35, 9001132), (49, 6429380), (70, 4500566), (98, 3214690), (140, 2250283), (196, 1607345), (245, 1285876), (490, 642938), (980, 321469)]