259495180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{264791}}^1$

素因数の和:264814

約数の個数: 36

約数和(自身を含む): 633912048

約数和(自身を除く): 374416868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 264791, 529582, 1059164, 1323955, 1853537, 2647910, 3707074, 5295820, 7414148, 9267685, 12974759, 18535370, 25949518, 37070740, 51899036, 64873795, 129747590, 259495180]

約数ペア:

[(1, 259495180), (2, 129747590), (4, 64873795), (5, 51899036), (7, 37070740), (10, 25949518), (14, 18535370), (20, 12974759), (28, 9267685), (35, 7414148), (49, 5295820), (70, 3707074), (98, 2647910), (140, 1853537), (196, 1323955), (245, 1059164), (490, 529582), (980, 264791)]