389621876

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1\times {\mathrm{337}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 789524736

約数和(自身を除く): 399902860

約数列:

[1, 2, 4, 7, 14, 28, 157, 263, 314, 337, 526, 628, 674, 1052, 1099, 1348, 1841, 2198, 2359, 3682, 4396, 4718, 7364, 9436, 41291, 52909, 82582, 88631, 105818, 165164, 177262, 211636, 289037, 354524, 370363, 578074, 620417, 740726, 1156148, 1240834, 1481452, 2481668, 13915067, 27830134, 55660268, 97405469, 194810938, 389621876]

約数ペア:

[(1, 389621876), (2, 194810938), (4, 97405469), (7, 55660268), (14, 27830134), (28, 13915067), (157, 2481668), (263, 1481452), (314, 1240834), (337, 1156148), (526, 740726), (628, 620417), (674, 578074), (1052, 370363), (1099, 354524), (1348, 289037), (1841, 211636), (2198, 177262), (2359, 165164), (3682, 105818), (4396, 88631), (4718, 82582), (7364, 52909), (9436, 41291)]