319134080

素因数分解:

$2^7\times 5^1\times {\mathrm{498647}}^1$

素因数の和:498666

約数の個数: 32

約数和(自身を含む): 762931440

約数和(自身を除く): 443797360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 498647, 997294, 1994588, 2493235, 3989176, 4986470, 7978352, 9972940, 15956704, 19945880, 31913408, 39891760, 63826816, 79783520, 159567040, 319134080]

約数ペア:

[(1, 319134080), (2, 159567040), (4, 79783520), (5, 63826816), (8, 39891760), (10, 31913408), (16, 19945880), (20, 15956704), (32, 9972940), (40, 7978352), (64, 4986470), (80, 3989176), (128, 2493235), (160, 1994588), (320, 997294), (640, 498647)]