388693640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{511439}}^1$

素因数の和:511469

約数の個数: 32

約数和(自身を含む): 920592000

約数和(自身を除く): 531898360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 511439, 1022878, 2045756, 2557195, 4091512, 5114390, 9717341, 10228780, 19434682, 20457560, 38869364, 48586705, 77738728, 97173410, 194346820, 388693640]

約数ペア:

[(1, 388693640), (2, 194346820), (4, 97173410), (5, 77738728), (8, 48586705), (10, 38869364), (19, 20457560), (20, 19434682), (38, 10228780), (40, 9717341), (76, 5114390), (95, 4091512), (152, 2557195), (190, 2045756), (380, 1022878), (760, 511439)]