399704377640

素因数分解:

$2^3\times 5^1\times {\mathrm{1201}}^1\times {\mathrm{1907}}^1\times {\mathrm{4363}}^1$

素因数の和:7482

約数の個数: 64

約数和(自身を含む): 900762068160

約数和(自身を除く): 501057690520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1201, 1907, 2402, 3814, 4363, 4804, 6005, 7628, 8726, 9535, 9608, 12010, 15256, 17452, 19070, 21815, 24020, 34904, 38140, 43630, 48040, 76280, 87260, 174520, 2290307, 4580614, 5239963, 8320241, 9161228, 10479926, 11451535, 16640482, 18322456, 20959852, 22903070, 26199815, 33280964, 41601205, 41919704, 45806140, 52399630, 66561928, 83202410, 91612280, 104799260, 166404820, 209598520, 332809640, 9992609441, 19985218882, 39970437764, 49963047205, 79940875528, 99926094410, 199852188820, 399704377640]

約数ペア:

[(1, 399704377640), (2, 199852188820), (4, 99926094410), (5, 79940875528), (8, 49963047205), (10, 39970437764), (20, 19985218882), (40, 9992609441), (1201, 332809640), (1907, 209598520), (2402, 166404820), (3814, 104799260), (4363, 91612280), (4804, 83202410), (6005, 66561928), (7628, 52399630), (8726, 45806140), (9535, 41919704), (9608, 41601205), (12010, 33280964), (15256, 26199815), (17452, 22903070), (19070, 20959852), (21815, 18322456), (24020, 16640482), (34904, 11451535), (38140, 10479926), (43630, 9161228), (48040, 8320241), (76280, 5239963), (87260, 4580614), (174520, 2290307)]